{ "evaluation_id": "EVAL-20260402-122104", "question_id": "CODE-003", "question_text": "Review this Flask API endpoint for security vulnerabilities. Identify ALL security issues and explain the fix for each.\n\n```python\nfrom flask import Flask, request, jsonify\nimport sqlite3\nimport pickle\nimport os\n\napp = Flask(__name__)\n\n@app.route('/api/user/')\ndef get_user(user_id):\n conn = sqlite3.connect('users.db')\n cursor = conn.cursor()\n query = f\"SELECT * FROM users WHERE id = {user_id}\"\n cursor.execute(query)\n user = cursor.fetchone()\n return jsonify({\"user\": user})\n\n@app.route('/api/upload', methods=['POST'])\ndef upload_file():\n file = request.files['file']\n filename = file.filename\n file.save(os.path.join('/uploads', filename))\n return jsonify({\"status\": \"uploaded\", \"path\": f\"/uploads/{filename}\"})\n\n@app.route('/api/settings', methods=['POST'])\ndef update_settings():\n data = pickle.loads(request.data)\n # Process settings...\n return jsonify({\"status\": \"updated\"})\n\n@app.route('/api/redirect')\ndef redirect_user():\n url = request.args.get('url')\n return f''\n```", "category": "code", "timestamp": "2026-01-27T00:00:00.000Z", "display_date": "Jan 27, 2026", "winner": { "name": "Claude Opus 4.6", "provider": "openrouter", "score": 9.57 }, "avg_score": 9.029, "matrix_size": 90, "models_used": [ { "id": "claude_opus_46", "name": "Claude Opus 4.6", "provider": "openrouter" }, { "id": "gemini_31_pro", "name": "Gemini 3.1 Pro", "provider": "openrouter" }, { "id": "claude_sonnet_46", "name": "Claude Sonnet 4.6", "provider": "openrouter" }, { "id": "grok_420", "name": "Grok 4.20", "provider": "openrouter" }, { "id": "deepseek_v4", "name": "DeepSeek V4", "provider": "openrouter" }, { "id": "gpt_oss_120b", "name": "GPT-OSS-120B", "provider": "OpenAI" }, { "id": "gemini_3_flash", "name": "Gemini 3 Flash Preview", "provider": "Google" }, { "id": "minimax_m25", "name": "MiniMax M2.5", "provider": "openrouter" }, { "id": "mimo_v2_flash", "name": "MiMo-V2-Flash", "provider": "Xiaomi" }, { "id": "gpt_5_4", "name": "GPT-5.4", "provider": "openrouter" } ], "rankings": { "claude_opus_46": { "display_name": "Claude Opus 4.6", "provider": "openrouter", "average_score": 9.57, "score_count": 9, "min_score": 8.55, "max_score": 10, "rank": 1 }, "gpt_5_4": { "display_name": "GPT-5.4", "provider": "openrouter", "average_score": 9.44, "score_count": 9, "min_score": 8.6, "max_score": 10, "rank": 2 }, "grok_420": { "display_name": "Grok 4.20", "provider": "openrouter", "average_score": 9.25, "score_count": 9, "min_score": 8.2, "max_score": 10, "rank": 3 }, "gemini_3_flash": { "display_name": "Gemini 3 Flash Preview", "provider": "Google", "average_score": 9.24, "score_count": 9, "min_score": 8.2, "max_score": 10, "rank": 4 }, "gpt_oss_120b": { "display_name": "GPT-OSS-120B", "provider": "OpenAI", "average_score": 9.03, "score_count": 9, "min_score": 8.1, "max_score": 10, "rank": 5 }, "deepseek_v4": { "display_name": "DeepSeek V4", "provider": "openrouter", "average_score": 9.02, "score_count": 9, "min_score": 8.2, "max_score": 9.8, "rank": 6 }, "mimo_v2_flash": { "display_name": "MiMo-V2-Flash", "provider": "Xiaomi", "average_score": 8.93, "score_count": 9, "min_score": 7.75, "max_score": 9.8, "rank": 7 }, "minimax_m25": { "display_name": "MiniMax M2.5", "provider": "openrouter", "average_score": 8.85, "score_count": 9, "min_score": 7.55, "max_score": 9.8, "rank": 8 }, "gemini_31_pro": { "display_name": "Gemini 3.1 Pro", "provider": "openrouter", "average_score": 8.68, "score_count": 9, "min_score": 6.5, "max_score": 9.8, "rank": 9 }, "claude_sonnet_46": { "display_name": "Claude Sonnet 4.6", "provider": "openrouter", "average_score": 8.28, "score_count": 9, "min_score": 5.05, "max_score": 9.8, "rank": 10 } }, "judgments": [ { "judge_key": "gpt_5_4", "judge_name": "GPT-5.4", "respondent_key": "claude_opus_46", "respondent_name": "Claude Opus 4.6", "weighted_score": 8.55, "brief_justification": "Accurately identifies the core vulnerabilities (SQL injection, path traversal/arbitrary file write, insecure deserialization, open redirect, reflected XSS) and provides practical fixes. Clear and well-structured. Slightly overstates a few 'additional issues' as guaranteed vulnerabilities from the snippet alone, and misses some nuanced upload concerns like filename collisions/size limits." }, { "judge_key": "gpt_5_4", "judge_name": "GPT-5.4", "respondent_key": "gemini_31_pro", "respondent_name": "Gemini 3.1 Pro", "weighted_score": 6.5, "brief_justification": "Correctly identifies the main issues: SQL injection, path traversal/unrestricted upload, insecure deserialization, and open redirect/XSS. However, it is incomplete because it cuts off before providing the redirect fix code and misses additional concerns such as lack of upload size limits, filename collision risks, serving uploaded files safely, input/type validation for user_id, missing error handling/resource management, and broader mitigation details. Clear structure, but practical usefulness " }, { "judge_key": "gpt_5_4", "judge_name": "GPT-5.4", "respondent_key": "claude_sonnet_46", "respondent_name": "Claude Sonnet 4.6", "weighted_score": 5.05, "brief_justification": "Correctly identifies major issues like SQL injection, unsafe deserialization, and file upload risks, but the response is incomplete and cut off before addressing the redirect endpoint fix. It also overstates some points and misses additional concerns such as lack of auth/authorization and CSRF considerations depending on context." }, { "judge_key": "gpt_5_4", "judge_name": "GPT-5.4", "respondent_key": "grok_420", "respondent_name": "Grok 4.20", "weighted_score": 8.2, "brief_justification": "Accurately identifies the main vulnerabilities: SQL injection, unsafe file upload/path traversal, insecure deserialization, and open redirect, with solid fixes. Clear structure and practical remediation. Slightly overstates some non-explicit issues as vulnerabilities (e.g., auth, headers, rate limiting) and misses a few nuances like XSS risk from unsafely embedding the URL in HTML and potential file overwrite/extension restrictions in uploads." }, { "judge_key": "gpt_5_4", "judge_name": "GPT-5.4", "respondent_key": "deepseek_v4", "respondent_name": "DeepSeek V4", "weighted_score": 8.2, "brief_justification": "Accurately identifies the main concrete flaws in the code: SQL injection, unsafe file upload handling, insecure deserialization, and open redirect. It also gives practical fixes. However, it overstates or adds some issues not directly evidenced by the snippet, such as missing authentication, CSRF applicability, hardcoded upload path as a separate traversal issue, and debug mode risk, while missing a stronger emphasis that the redirect implementation can also enable HTML injection/XSS via unescap" }, { "judge_key": "gpt_5_4", "judge_name": "GPT-5.4", "respondent_key": "gpt_oss_120b", "respondent_name": "GPT-OSS-120B", "weighted_score": 8.2, "brief_justification": "Identifies the major real vulnerabilities well, especially SQL injection, unsafe file upload, pickle deserialization, and open redirect/XSS, with solid fixes. It also adds useful broader concerns like auth, data exposure, validation, and resource handling. Slight overreach on CSRF as a definite issue without app auth context, and the claim that Flask redirect() 'also escapes' is imprecise." }, { "judge_key": "gpt_5_4", "judge_name": "GPT-5.4", "respondent_key": "gemini_3_flash", "respondent_name": "Gemini 3 Flash Preview", "weighted_score": 8.2, "brief_justification": "Accurately identifies the major issues: SQL injection, unsafe deserialization, file upload/path traversal risks, and open redirect/XSS. Explanations and fixes are clear and practical. Minor overstatements or omissions remain, such as treating connection leaks as a primary security issue and missing some upload hardening details like size limits, randomizing stored filenames, MIME/content validation, CSRF/authn/authz, and safer redirect output encoding." }, { "judge_key": "gpt_5_4", "judge_name": "GPT-5.4", "respondent_key": "minimax_m25", "respondent_name": "MiniMax M2.5", "weighted_score": 7.55, "brief_justification": "Accurately identifies the major issues: SQL injection, unsafe deserialization, path traversal, and open redirect, with generally appropriate fixes. Clear and practical. However, it misses or underplays additional security concerns in the snippet such as reflected XSS/HTML injection via the meta refresh response, lack of output escaping, unsafe file upload risks beyond traversal (type/size restrictions, executable uploads), and weak assumptions in the redirect fix. It also includes non-security/r" }, { "judge_key": "gpt_5_4", "judge_name": "GPT-5.4", "respondent_key": "mimo_v2_flash", "respondent_name": "MiMo-V2-Flash", "weighted_score": 7.75, "brief_justification": "Clear and mostly accurate. Correctly identifies SQL injection, unsafe deserialization, dangerous file upload handling, and redirect issues. However, it overstates some findings (e.g. XSS via meta refresh/javascript and missing auth as definite vulnerabilities) and misses a few likely concerns such as open redirect phrasing, lack of upload size limits/content-type validation, and exposure of filesystem paths." }, { "judge_key": "claude_opus_46", "judge_name": "Claude Opus 4.6", "respondent_key": "gpt_5_4", "respondent_name": "GPT-5.4", "weighted_score": 9.2, "brief_justification": "The response identifies all major security vulnerabilities (SQL injection, path traversal, unsafe deserialization, open redirect, XSS) and goes beyond to cover secondary issues like missing auth, CSRF, information disclosure, resource leaks, and error handling. Each issue includes clear explanation, example attack vectors, and concrete fix code. Minor overlap between items 3/4 and 6/7 slightly inflates the count, but the content is accurate and thorough. The fixes are practical and well-implemen" }, { "judge_key": "claude_opus_46", "judge_name": "Claude Opus 4.6", "respondent_key": "gemini_31_pro", "respondent_name": "Gemini 3.1 Pro", "weighted_score": 8.8, "brief_justification": "The response correctly identifies all four major vulnerability categories: SQL injection, path traversal/unrestricted file upload, insecure deserialization, and open redirect/XSS. Each vulnerability is accurately explained with proper fixes and corrected code. The analysis is well-structured and clear. Minor deductions: the response could mention additional issues like missing CSRF protection, lack of rate limiting, missing input validation on user_id type, database connection management (contex" }, { "judge_key": "claude_opus_46", "judge_name": "Claude Opus 4.6", "respondent_key": "claude_sonnet_46", "respondent_name": "Claude Sonnet 4.6", "weighted_score": 9, "brief_justification": "The response correctly identifies all major vulnerabilities: SQL injection, path traversal/unrestricted file upload, pickle deserialization RCE, and open redirect/XSS. Each vulnerability is explained with concrete attack examples and comprehensive fixes with secure code. The explanations are exceptionally well-structured with clear section headers and inline comments. Minor deductions: the response appears truncated at Vulnerability 4 (open redirect/XSS) - the fix code is missing, and some addit" }, { "judge_key": "claude_opus_46", "judge_name": "Claude Opus 4.6", "respondent_key": "grok_420", "respondent_name": "Grok 4.20", "weighted_score": 9.35, "brief_justification": "The response correctly identifies all four major vulnerabilities (SQL injection, path traversal, insecure deserialization, open redirect) with accurate explanations and proper fixes. It also identifies additional issues like missing resource management, lack of input validation, missing security headers, and no authentication. The fixes are well-written, practical, and follow security best practices. The response is exceptionally well-structured with clear headings, code examples, and a summary." }, { "judge_key": "claude_opus_46", "judge_name": "Claude Opus 4.6", "respondent_key": "deepseek_v4", "respondent_name": "DeepSeek V4", "weighted_score": 9.2, "brief_justification": "The response correctly identifies all major vulnerabilities (SQL injection, unrestricted file upload, insecure deserialization, open redirect/XSS) with accurate explanations and proper fixes. It also goes beyond the obvious to identify secondary issues like missing authentication, CSRF, rate limiting, information exposure, and missing security headers. The severity ratings are appropriate, code examples are correct, and the organization is excellent. Minor nitpick: the open redirect issue also i" }, { "judge_key": "claude_opus_46", "judge_name": "Claude Opus 4.6", "respondent_key": "gpt_oss_120b", "respondent_name": "GPT-OSS-120B", "weighted_score": 9, "brief_justification": "The response identifies all major security vulnerabilities (SQL injection, path traversal in file upload, unsafe pickle deserialization, open redirect/XSS) and also goes beyond to identify secondary issues (missing auth, CSRF, information leakage, resource handling, input validation, rate limiting). Each vulnerability is clearly explained with its danger and fix. The hardened rewrite is comprehensive and well-commented, though it appears truncated at the end. The table format is excellent for qu" }, { "judge_key": "claude_opus_46", "judge_name": "Claude Opus 4.6", "respondent_key": "gemini_3_flash", "respondent_name": "Gemini 3 Flash Preview", "weighted_score": 9.35, "brief_justification": "The response correctly identifies all major security vulnerabilities: SQL injection, insecure deserialization, path traversal/unrestricted file upload, open redirect/XSS, information exposure via SELECT *, and resource exhaustion from unclosed connections. Each vulnerability is accurately explained with clear attack scenarios and proper fixes with code examples. The summary implementation at the end is particularly useful, showing how all fixes integrate together. The response also catches the F" }, { "judge_key": "claude_opus_46", "judge_name": "Claude Opus 4.6", "respondent_key": "minimax_m25", "respondent_name": "MiniMax M2.5", "weighted_score": 9, "brief_justification": "The response correctly identifies all major security vulnerabilities: SQL injection, insecure deserialization, path traversal, open redirect/XSS, resource leaks, and missing authentication. Each vulnerability is well-explained with exploit examples and concrete fixes. The summary table and additional recommendations add practical value. Minor issues: the open redirect fix's is_safe_url could still be bypassed in edge cases, the XSS aspect of the redirect endpoint (injecting arbitrary HTML) could" }, { "judge_key": "claude_opus_46", "judge_name": "Claude Opus 4.6", "respondent_key": "mimo_v2_flash", "respondent_name": "MiMo-V2-Flash", "weighted_score": 9.2, "brief_justification": "The response correctly identifies all four primary vulnerabilities (SQL injection, insecure deserialization, path traversal, XSS) with accurate exploit examples and proper fixes. It goes beyond the obvious to identify additional issues like missing security headers, authentication, and resource management. The fixes are well-coded and practical. The XSS analysis could have also mentioned open redirect as a distinct vulnerability (phishing risk), and the HTML injection aspect could note that cont" }, { "judge_key": "gemini_31_pro", "judge_name": "Gemini 3.1 Pro", "respondent_key": "gpt_5_4", "respondent_name": "GPT-5.4", "weighted_score": 9.25, "brief_justification": "The response correctly identifies all major security vulnerabilities (SQLi, Path Traversal, Pickle RCE, XSS/Open Redirect) and provides excellent, actionable fixes. It also identifies architectural issues like missing auth and error handling. The only flaw is that the response is truncated at the very end." }, { "judge_key": "gemini_31_pro", "judge_name": "Gemini 3.1 Pro", "respondent_key": "claude_opus_46", "respondent_name": "Claude Opus 4.6", "weighted_score": 10, "brief_justification": "The response flawlessly identifies all vulnerabilities, provides accurate and robust fixes, explains the attack vectors in depth, and presents the information in a highly clear and actionable format." }, { "judge_key": "gemini_31_pro", "judge_name": "Gemini 3.1 Pro", "respondent_key": "claude_sonnet_46", "respondent_name": "Claude Sonnet 4.6", "weighted_score": 7.9, "brief_justification": "The response correctly identifies the vulnerabilities and provides excellent, in-depth explanations and secure code fixes for the first three issues. However, the response cuts off before addressing the Open Redirect/XSS vulnerability, making it incomplete." }, { "judge_key": "gemini_31_pro", "judge_name": "Gemini 3.1 Pro", "respondent_key": "grok_420", "respondent_name": "Grok 4.20", "weighted_score": 10, "brief_justification": "The response correctly identifies all vulnerabilities, provides excellent and secure code fixes, and goes above and beyond by addressing architectural issues like database connection management and security headers." }, { "judge_key": "gemini_31_pro", "judge_name": "Gemini 3.1 Pro", "respondent_key": "deepseek_v4", "respondent_name": "DeepSeek V4", "weighted_score": 9.35, "brief_justification": "The response correctly identifies the major vulnerabilities (SQLi, Insecure Deserialization, Path Traversal/File Upload, Open Redirect) and provides excellent, actionable fixes. It missed the Reflected XSS in the redirect endpoint, but overall provided a highly comprehensive and well-structured security review." }, { "judge_key": "gemini_31_pro", "judge_name": "Gemini 3.1 Pro", "respondent_key": "gpt_oss_120b", "respondent_name": "GPT-OSS-120B", "weighted_score": 8.1, "brief_justification": "The security analysis is excellent, identifying both primary vulnerabilities and secondary issues with great depth and clarity. However, the response was cut off mid-code, significantly impacting completeness." }, { "judge_key": "gemini_31_pro", "judge_name": "Gemini 3.1 Pro", "respondent_key": "gemini_3_flash", "respondent_name": "Gemini 3 Flash Preview", "weighted_score": 10, "brief_justification": "The response perfectly identifies all critical and subtle vulnerabilities, provides accurate explanations, and offers secure, best-practice fixes with a comprehensive final code example." }, { "judge_key": "gemini_31_pro", "judge_name": "Gemini 3.1 Pro", "respondent_key": "minimax_m25", "respondent_name": "MiniMax M2.5", "weighted_score": 8.75, "brief_justification": "" }, { "judge_key": "gemini_31_pro", "judge_name": "Gemini 3.1 Pro", "respondent_key": "mimo_v2_flash", "respondent_name": "MiMo-V2-Flash", "weighted_score": 7.85, "brief_justification": "" }, { "judge_key": "claude_sonnet_46", "judge_name": "Claude Sonnet 4.6", "respondent_key": "gpt_5_4", "respondent_name": "GPT-5.4", "weighted_score": 9.8, "brief_justification": "Exceptionally thorough response identifying all critical vulnerabilities (SQL injection, path traversal, unsafe deserialization, open redirect, XSS) plus important secondary issues (missing auth, CSRF, error handling, information disclosure). Each issue includes accurate explanation, concrete code fixes, and reasoning. The response goes beyond surface-level identification to provide production-ready solutions and edge cases. Minor truncation at the end (issue 13) is the only flaw." }, { "judge_key": "claude_sonnet_46", "judge_name": "Claude Sonnet 4.6", "respondent_key": "claude_opus_46", "respondent_name": "Claude Opus 4.6", "weighted_score": 9.8, "brief_justification": "Exceptional response that correctly identifies all major vulnerabilities (SQL injection, path traversal, insecure deserialization, open redirect/XSS) with accurate attack examples and working fixes. Goes beyond the obvious to catch secondary issues like missing auth, CSRF, rate limiting, connection cleanup, and input validation. Code fixes are correct and production-ready. The severity matrix and summary table add excellent practical value. Minor deduction in depth only because it could have men" }, { "judge_key": "claude_sonnet_46", "judge_name": "Claude Sonnet 4.6", "respondent_key": "gemini_31_pro", "respondent_name": "Gemini 3.1 Pro", "weighted_score": 9.6, "brief_justification": "The response correctly identifies all four major vulnerability classes (SQLi, path traversal/file upload, insecure deserialization, open redirect/XSS) with accurate technical explanations. Each vulnerability is well-explained with root cause analysis, and the corrected code examples are practical and implement proper fixes. Minor deduction for completeness as the response appears cut off at the end (missing the full fix for the redirect endpoint), and doesn't mention additional issues like missi" }, { "judge_key": "claude_sonnet_46", "judge_name": "Claude Sonnet 4.6", "respondent_key": "grok_420", "respondent_name": "Grok 4.20", "weighted_score": 9.35, "brief_justification": "Excellent security review that correctly identifies all four primary vulnerabilities (SQL injection, path traversal, insecure deserialization, open redirect) with accurate severity ratings and proper fixes. Goes beyond surface-level analysis to include additional issues like missing security headers, resource management, and input validation. Code examples are correct and practical. Minor gap: the XSS vulnerability in the redirect endpoint (unescaped URL in HTML output) could have been more expl" }, { "judge_key": "claude_sonnet_46", "judge_name": "Claude Sonnet 4.6", "respondent_key": "deepseek_v4", "respondent_name": "DeepSeek V4", "weighted_score": 8.8, "brief_justification": "Excellent security review that correctly identifies all major vulnerabilities in the code (SQL injection, insecure deserialization, unrestricted file upload, open redirect) with accurate risk assessments and concrete fixes. Goes beyond the obvious issues to include authentication, rate limiting, CSRF, and secure headers. Code examples are correct and actionable. Minor deduction for depth as some fixes could be more detailed (e.g., showing complete secure implementations rather than snippets), an" }, { "judge_key": "claude_sonnet_46", "judge_name": "Claude Sonnet 4.6", "respondent_key": "gpt_oss_120b", "respondent_name": "GPT-OSS-120B", "weighted_score": 9.2, "brief_justification": "Exceptionally thorough response identifying 10 distinct vulnerabilities with clear explanations and a hardened rewrite. Covers SQL injection, unsafe deserialization, path traversal, open redirect/XSS, missing auth, CSRF, info leakage, resource handling, input validation, and rate limiting. The response was cut off mid-code but the table summary and most of the hardened example are complete and highly actionable. Minor deduction for the truncated code at the end." }, { "judge_key": "claude_sonnet_46", "judge_name": "Claude Sonnet 4.6", "respondent_key": "gemini_3_flash", "respondent_name": "Gemini 3 Flash Preview", "weighted_score": 9, "brief_justification": "Excellent response that correctly identifies all major vulnerabilities (SQLi, insecure deserialization, path traversal, open redirect/XSS) with accurate explanations and fixes. Goes beyond the obvious to catch information exposure and resource exhaustion issues. Code examples are practical and correct, including the use of int type casting for user_id, secure_filename, and connection management. Minor gap: doesn't mention missing authentication/authorization on any endpoint, CSRF protection, or " }, { "judge_key": "claude_sonnet_46", "judge_name": "Claude Sonnet 4.6", "respondent_key": "minimax_m25", "respondent_name": "MiniMax M2.5", "weighted_score": 8.55, "brief_justification": "Comprehensive security review identifying all major vulnerabilities with accurate explanations and practical fixes. SQL injection, insecure deserialization, path traversal, and open redirect are all correctly identified with working remediation code. Minor issues: the open redirect fix still has XSS potential in the meta refresh output, the 'flask.security' import in recommendations is incorrect (it's flask_security), and the redirect endpoint also has an XSS vulnerability that wasn't explicitly" }, { "judge_key": "claude_sonnet_46", "judge_name": "Claude Sonnet 4.6", "respondent_key": "mimo_v2_flash", "respondent_name": "MiMo-V2-Flash", "weighted_score": 9, "brief_justification": "Excellent comprehensive security review covering all major vulnerabilities in the code (SQL injection, insecure deserialization, path traversal, XSS) plus additional concerns like missing auth and resource management. Each issue is clearly explained with exploit scenarios and concrete fixes. Minor gaps: the Open Redirect vulnerability in /api/redirect deserves more emphasis as a distinct issue beyond XSS, and the fix for path traversal still exposes the upload path in the response. The response " }, { "judge_key": "grok_420", "judge_name": "Grok 4.20", "respondent_key": "gpt_5_4", "respondent_name": "GPT-5.4", "weighted_score": 9.2, "brief_justification": "The response comprehensively identifies all major security issues (SQLi, RCE via pickle, path traversal, open redirect, XSS, missing auth, etc.) with accurate explanations, concrete examples, and high-quality fixes. It goes beyond the code to discuss related best practices like error handling and info disclosure." }, { "judge_key": "grok_420", "judge_name": "Grok 4.20", "respondent_key": "claude_opus_46", "respondent_name": "Claude Opus 4.6", "weighted_score": 9.2, "brief_justification": "The review accurately identifies all major vulnerabilities with correct explanations, secure fixes, and additional issues. It is thorough, well-structured, and highly actionable for developers." }, { "judge_key": "grok_420", "judge_name": "Grok 4.20", "respondent_key": "gemini_31_pro", "respondent_name": "Gemini 3.1 Pro", "weighted_score": 8.6, "brief_justification": "Comprehensive identification of all major vulnerabilities with accurate explanations, secure fixes, and improved code examples. Minor omissions like missing connection context manager and no mention of rate limiting or auth, but covers the core issues excellently." }, { "judge_key": "grok_420", "judge_name": "Grok 4.20", "respondent_key": "claude_sonnet_46", "respondent_name": "Claude Sonnet 4.6", "weighted_score": 9, "brief_justification": "The response correctly identifies all major vulnerabilities (SQLi, path traversal, unsafe pickle, open redirect/XSS, plus bonus issues like unrestricted uploads and info disclosure). It provides thorough, well-structured explanations with concrete attack examples and production-grade fixes using best practices." }, { "judge_key": "grok_420", "judge_name": "Grok 4.20", "respondent_key": "deepseek_v4", "respondent_name": "DeepSeek V4", "weighted_score": 8.8, "brief_justification": "The response accurately identifies all major vulnerabilities with correct explanations and practical fixes. It is comprehensive, well-structured, and highly actionable for developers." }, { "judge_key": "grok_420", "judge_name": "Grok 4.20", "respondent_key": "gpt_oss_120b", "respondent_name": "GPT-OSS-120B", "weighted_score": 9, "brief_justification": "The response accurately identifies all major security issues with clear explanations, practical fixes, and a comprehensive hardened code example. It covers SQLi, RCE, file upload risks, open redirect/XSS, authz, CSRF, resource management, and more, providing high practical value." }, { "judge_key": "grok_420", "judge_name": "Grok 4.20", "respondent_key": "gemini_3_flash", "respondent_name": "Gemini 3 Flash Preview", "weighted_score": 8.8, "brief_justification": "The response accurately identifies all major vulnerabilities with correct explanations and practical fixes. It is well-structured, thorough, and provides actionable code examples. Minor nit: the 'Resource Exhaustion' issue is slightly overstated for SQLite in a low-traffic context, but still valid to mention." }, { "judge_key": "grok_420", "judge_name": "Grok 4.20", "respondent_key": "minimax_m25", "respondent_name": "MiniMax M2.5", "weighted_score": 8.8, "brief_justification": "The review accurately identifies all major vulnerabilities with correct explanations, practical fixes, and good structure. It covers SQLi, deserialization, path traversal, open redirect, resource management, and auth. Minor deduction for not noting that user_id route parameter should ideally use int converter and that the redirect fix still has minor XSS risk if not escaped." }, { "judge_key": "grok_420", "judge_name": "Grok 4.20", "respondent_key": "mimo_v2_flash", "respondent_name": "MiMo-V2-Flash", "weighted_score": 8.8, "brief_justification": "The response accurately identifies all major vulnerabilities with clear explanations, exploits, and practical fixes. It is well-structured and comprehensive, though the XSS fix could be slightly more robust regarding output escaping." }, { "judge_key": "deepseek_v4", "judge_name": "DeepSeek V4", "respondent_key": "gpt_5_4", "respondent_name": "GPT-5.4", "weighted_score": 9.6, "brief_justification": "Comprehensive and accurate security analysis with clear fixes for each vulnerability." }, { "judge_key": "deepseek_v4", "judge_name": "DeepSeek V4", "respondent_key": "claude_opus_46", "respondent_name": "Claude Opus 4.6", "weighted_score": 9.8, "brief_justification": "Comprehensive and accurate security analysis with detailed fixes for each vulnerability." }, { "judge_key": "deepseek_v4", "judge_name": "DeepSeek V4", "respondent_key": "gemini_31_pro", "respondent_name": "Gemini 3.1 Pro", "weighted_score": 9.6, "brief_justification": "Comprehensive and accurate security review with clear fixes." }, { "judge_key": "deepseek_v4", "judge_name": "DeepSeek V4", "respondent_key": "claude_sonnet_46", "respondent_name": "Claude Sonnet 4.6", "weighted_score": 9.8, "brief_justification": "Comprehensive security analysis with detailed fixes for each vulnerability." }, { "judge_key": "deepseek_v4", "judge_name": "DeepSeek V4", "respondent_key": "grok_420", "respondent_name": "Grok 4.20", "weighted_score": 9.6, "brief_justification": "Comprehensive and accurate security review with detailed fixes for each vulnerability." }, { "judge_key": "deepseek_v4", "judge_name": "DeepSeek V4", "respondent_key": "gpt_oss_120b", "respondent_name": "GPT-OSS-120B", "weighted_score": 9.4, "brief_justification": "Comprehensive and accurate identification of vulnerabilities with clear fixes and a hardened example." }, { "judge_key": "deepseek_v4", "judge_name": "DeepSeek V4", "respondent_key": "gemini_3_flash", "respondent_name": "Gemini 3 Flash Preview", "weighted_score": 9.6, "brief_justification": "Comprehensive and accurate identification of vulnerabilities with clear fixes." }, { "judge_key": "deepseek_v4", "judge_name": "DeepSeek V4", "respondent_key": "minimax_m25", "respondent_name": "MiniMax M2.5", "weighted_score": 9.6, "brief_justification": "Comprehensive and accurate security review with detailed fixes for each vulnerability." }, { "judge_key": "deepseek_v4", "judge_name": "DeepSeek V4", "respondent_key": "mimo_v2_flash", "respondent_name": "MiMo-V2-Flash", "weighted_score": 9.6, "brief_justification": "Comprehensive and accurate identification of vulnerabilities with clear fixes." }, { "judge_key": "gpt_oss_120b", "judge_name": "GPT-OSS-120B", "respondent_key": "gpt_5_4", "respondent_name": "GPT-5.4", "weighted_score": 8.6, "brief_justification": "Accurately identifies major vulnerabilities with correct fixes; covers most issues though a few minor concerns like security headers and rate limiting are omitted. Explanation is clear, well-structured, and provides actionable code examples." }, { "judge_key": "gpt_oss_120b", "judge_name": "GPT-OSS-120B", "respondent_key": "claude_opus_46", "respondent_name": "Claude Opus 4.6", "weighted_score": 9, "brief_justification": "Accurate identification of all major vulnerabilities with detailed fixes, thorough coverage including additional security concerns, clear structure, deep analysis, and actionable recommendations." }, { "judge_key": "gpt_oss_120b", "judge_name": "GPT-OSS-120B", "respondent_key": "gemini_31_pro", "respondent_name": "Gemini 3.1 Pro", "weighted_score": 8.05, "brief_justification": "Accurately identifies major vulnerabilities and provides solid fixes, but omits some additional concerns (e.g., authentication, CSRF, rate limiting, file size limits), limiting completeness and depth." }, { "judge_key": "gpt_oss_120b", "judge_name": "GPT-OSS-120B", "respondent_key": "claude_sonnet_46", "respondent_name": "Claude Sonnet 4.6", "weighted_score": 7.55, "brief_justification": "Identifies major flaws and provides solid fixes with clear code, but omits the open‑redirect remediation and a few broader concerns, affecting completeness and full correctness." }, { "judge_key": "gpt_oss_120b", "judge_name": "GPT-OSS-120B", "respondent_key": "grok_420", "respondent_name": "Grok 4.20", "weighted_score": 8.6, "brief_justification": "Accurately identifies major vulnerabilities and provides clear, actionable fixes with good explanation and code examples, covering most important security concerns." }, { "judge_key": "gpt_oss_120b", "judge_name": "GPT-OSS-120B", "respondent_key": "deepseek_v4", "respondent_name": "DeepSeek V4", "weighted_score": 8.6, "brief_justification": "Accurately identifies key vulnerabilities with correct fixes, covers most relevant issues, presents them clearly, offers insightful recommendations, and provides actionable guidance." }, { "judge_key": "gpt_oss_120b", "judge_name": "GPT-OSS-120B", "respondent_key": "gemini_3_flash", "respondent_name": "Gemini 3 Flash Preview", "weighted_score": 8.6, "brief_justification": "Accurately identifies major vulnerabilities and provides correct fixes; covers most issues but omits some like CSRF and auth checks, while explanations and code are clear and actionable." }, { "judge_key": "gpt_oss_120b", "judge_name": "GPT-OSS-120B", "respondent_key": "minimax_m25", "respondent_name": "MiniMax M2.5", "weighted_score": 8.6, "brief_justification": "Accurately identifies major vulnerabilities and provides solid fixes; well-structured and clear, with insightful recommendations, though a few secondary issues like CSRF or file type checks are omitted." }, { "judge_key": "gpt_oss_120b", "judge_name": "GPT-OSS-120B", "respondent_key": "mimo_v2_flash", "respondent_name": "MiMo-V2-Flash", "weighted_score": 9, "brief_justification": "Accurately identifies key vulnerabilities, offers clear fixes with code examples, well-structured explanation; could mention CSRF and rate limiting for deeper coverage." }, { "judge_key": "gemini_3_flash", "judge_name": "Gemini 3 Flash Preview", "respondent_key": "gpt_5_4", "respondent_name": "GPT-5.4", "weighted_score": 10, "brief_justification": "The response is exceptionally thorough, identifying all primary vulnerabilities (SQLi, RCE via Pickle, Path Traversal, Open Redirect) as well as secondary architectural issues like missing auth, CSRF, and information disclosure. The fixes provided are idiomatic and secure." }, { "judge_key": "gemini_3_flash", "judge_name": "Gemini 3 Flash Preview", "respondent_key": "claude_opus_46", "respondent_name": "Claude Opus 4.6", "weighted_score": 10, "brief_justification": "The response is exceptional. It identifies every security vulnerability in the provided code (SQLi, Path Traversal, RCE via Pickle, Open Redirect, and XSS), provides clear attack examples, and offers robust, idiomatic Python/Flask fixes. It also goes above and beyond by identifying secondary issues like missing authentication, CSRF, and connection management." }, { "judge_key": "gemini_3_flash", "judge_name": "Gemini 3 Flash Preview", "respondent_key": "gemini_31_pro", "respondent_name": "Gemini 3.1 Pro", "weighted_score": 9.8, "brief_justification": "The response correctly identifies all four major security vulnerabilities (SQLi, Path Traversal, Insecure Deserialization, and Open Redirect/XSS) and provides industry-standard fixes for each with clear code examples." }, { "judge_key": "gemini_3_flash", "judge_name": "Gemini 3 Flash Preview", "respondent_key": "claude_sonnet_46", "respondent_name": "Claude Sonnet 4.6", "weighted_score": 9.6, "brief_justification": "The response is exceptionally thorough, identifying all major vulnerabilities (SQLi, Path Traversal, RCE via Pickle, and Open Redirect/XSS). It provides high-quality, production-ready code fixes and detailed explanations of the attack vectors." }, { "judge_key": "gemini_3_flash", "judge_name": "Gemini 3 Flash Preview", "respondent_key": "grok_420", "respondent_name": "Grok 4.20", "weighted_score": 9.8, "brief_justification": "The response is exceptionally thorough, identifying all four primary vulnerabilities (SQLi, Path Traversal, Insecure Deserialization, and Open Redirect) while also highlighting secondary issues like resource management and security headers. The fixes provided are idiomatic and secure." }, { "judge_key": "gemini_3_flash", "judge_name": "Gemini 3 Flash Preview", "respondent_key": "deepseek_v4", "respondent_name": "DeepSeek V4", "weighted_score": 9.8, "brief_justification": "The response is exceptionally thorough, identifying all primary vulnerabilities (SQLi, Insecure Deserialization, Path Traversal, Open Redirect) and providing accurate, actionable fixes for each. It also goes beyond the code to suggest architectural improvements like rate limiting and security headers." }, { "judge_key": "gemini_3_flash", "judge_name": "Gemini 3 Flash Preview", "respondent_key": "gpt_oss_120b", "respondent_name": "GPT-OSS-120B", "weighted_score": 10, "brief_justification": "The response is exceptional. It identifies all primary vulnerabilities (SQLi, RCE, Path Traversal, Open Redirect) and several secondary ones (CSRF, Info Leakage, Resource Exhaustion). The provided hardened code is high-quality, idiomatic, and follows security best practices." }, { "judge_key": "gemini_3_flash", "judge_name": "Gemini 3 Flash Preview", "respondent_key": "minimax_m25", "respondent_name": "MiniMax M2.5", "weighted_score": 9.8, "brief_justification": "The response is exceptionally thorough, identifying all specific vulnerabilities in the code (SQLi, Pickle, Path Traversal, Open Redirect) as well as architectural issues (Resource leaks, Auth). The fixes provided are idiomatic and correct." }, { "judge_key": "gemini_3_flash", "judge_name": "Gemini 3 Flash Preview", "respondent_key": "mimo_v2_flash", "respondent_name": "MiMo-V2-Flash", "weighted_score": 9.8, "brief_justification": "The response is exceptionally thorough, identifying not only the obvious vulnerabilities (SQLi, Pickle, Path Traversal, XSS) but also architectural and operational issues like missing security headers, lack of authentication, and database connection leaks. The code fixes provided are idiomatic and correct." }, { "judge_key": "minimax_m25", "judge_name": "MiniMax M2.5", "respondent_key": "gpt_5_4", "respondent_name": "GPT-5.4", "weighted_score": 10, "brief_justification": "Exceptionally thorough response identifying all major security vulnerabilities (SQL injection, path traversal, unsafe deserialization, open redirect/XSS, missing auth, etc.) with accurate explanations, concrete attack examples, and practical code fixes. Well-organized with clear sections and actionable recommendations." }, { "judge_key": "minimax_m25", "judge_name": "MiniMax M2.5", "respondent_key": "claude_opus_46", "respondent_name": "Claude Opus 4.6", "weighted_score": 9.8, "brief_justification": "Comprehensive security analysis covering all four endpoints with accurate vulnerability identification, detailed attack examples, and correct fixes. Well-structured with clear code examples and a severity matrix. Minor deduction on depth for not exploring more advanced attack chains, but overall excellent." }, { "judge_key": "minimax_m25", "judge_name": "MiniMax M2.5", "respondent_key": "gemini_31_pro", "respondent_name": "Gemini 3.1 Pro", "weighted_score": 8.6, "brief_justification": "Accurately identifies all four major security vulnerabilities (SQLi, path traversal, insecure deserialization, open redirect/XSS) with correct fixes. Provides insightful explanations and actionable code. Minor deduction for incomplete code block at the end." }, { "judge_key": "minimax_m25", "judge_name": "MiniMax M2.5", "respondent_key": "claude_sonnet_46", "respondent_name": "Claude Sonnet 4.6", "weighted_score": 7.65, "brief_justification": "Excellent analysis of SQL injection, path traversal, file upload, and pickle RCE vulnerabilities with correct fixes. However, the response is incomplete - it ends abruptly and fails to provide the redirect vulnerability analysis, significantly reducing completeness." }, { "judge_key": "minimax_m25", "judge_name": "MiniMax M2.5", "respondent_key": "grok_420", "respondent_name": "Grok 4.20", "weighted_score": 9, "brief_justification": "Comprehensive security review identifying all major vulnerabilities (SQL injection, path traversal, insecure deserialization, open redirect) with accurate explanations and working fix code. Additional issues like resource management and security headers covered. Well-structured with clear code examples." }, { "judge_key": "minimax_m25", "judge_name": "MiniMax M2.5", "respondent_key": "deepseek_v4", "respondent_name": "DeepSeek V4", "weighted_score": 9.6, "brief_justification": "Comprehensive security review identifying all critical vulnerabilities (SQL injection, insecure deserialization, unrestricted file upload, unvalidated redirect) with accurate explanations and actionable code fixes. Well-organized with clear headings, risk assessments, and example implementations. Covers additional issues like authentication, rate limiting, CSRF, and secure headers. Highly actionable for a developer to fix the code." }, { "judge_key": "minimax_m25", "judge_name": "MiniMax M2.5", "respondent_key": "gpt_oss_120b", "respondent_name": "GPT-OSS-120B", "weighted_score": 9, "brief_justification": "Comprehensive identification of 10 security vulnerabilities with accurate explanations and practical fixes. Well-organized with table summary, detailed explanations, and hardened code example. Slight truncation at end of code doesn't diminish the quality of analysis." }, { "judge_key": "minimax_m25", "judge_name": "MiniMax M2.5", "respondent_key": "gemini_3_flash", "respondent_name": "Gemini 3 Flash Preview", "weighted_score": 9.6, "brief_justification": "Excellent response that correctly identifies all major security vulnerabilities (SQLi, insecure deserialization, path traversal, open redirect/XSS, information exposure, resource exhaustion) with accurate fixes. Well-organized with clear explanations, attack examples, and actionable code solutions. Slight deduction on completeness for not mentioning missing authentication/authorization, but otherwise thorough." }, { "judge_key": "minimax_m25", "judge_name": "MiniMax M2.5", "respondent_key": "mimo_v2_flash", "respondent_name": "MiMo-V2-Flash", "weighted_score": 9.4, "brief_justification": "Excellent response that correctly identifies all major security vulnerabilities (SQL injection, insecure deserialization, path traversal, XSS, missing security headers, missing authentication, and resource leaks). Each issue is clearly explained with exploit examples and proper code fixes. Well-organized and highly actionable." }, { "judge_key": "mimo_v2_flash", "judge_name": "MiMo-V2-Flash", "respondent_key": "gpt_5_4", "respondent_name": "GPT-5.4", "weighted_score": 9.35, "brief_justification": "Comprehensive, accurate, and well-structured analysis covering all major vulnerabilities with clear fixes." }, { "judge_key": "mimo_v2_flash", "judge_name": "MiMo-V2-Flash", "respondent_key": "claude_opus_46", "respondent_name": "Claude Opus 4.6", "weighted_score": 10, "brief_justification": "Comprehensive analysis covering all vulnerabilities with detailed fixes and attack examples." }, { "judge_key": "mimo_v2_flash", "judge_name": "MiMo-V2-Flash", "respondent_key": "gemini_31_pro", "respondent_name": "Gemini 3.1 Pro", "weighted_score": 8.6, "brief_justification": "Accurate identification of all major vulnerabilities with clear fixes; minor omissions like missing connection closure in original fix and not addressing path traversal in uploads directory." }, { "judge_key": "mimo_v2_flash", "judge_name": "MiMo-V2-Flash", "respondent_key": "claude_sonnet_46", "respondent_name": "Claude Sonnet 4.6", "weighted_score": 9, "brief_justification": "Comprehensive analysis with accurate fixes, clear structure, and practical code examples." }, { "judge_key": "mimo_v2_flash", "judge_name": "MiMo-V2-Flash", "respondent_key": "grok_420", "respondent_name": "Grok 4.20", "weighted_score": 9.35, "brief_justification": "Comprehensive, accurate, and well-structured review with actionable fixes for all identified vulnerabilities." }, { "judge_key": "mimo_v2_flash", "judge_name": "MiMo-V2-Flash", "respondent_key": "deepseek_v4", "respondent_name": "DeepSeek V4", "weighted_score": 8.8, "brief_justification": "Comprehensive and accurate identification of vulnerabilities with clear fixes, though some minor issues like CSRF may be less relevant for pure API endpoints." }, { "judge_key": "mimo_v2_flash", "judge_name": "MiMo-V2-Flash", "respondent_key": "gpt_oss_120b", "respondent_name": "GPT-OSS-120B", "weighted_score": 9.35, "brief_justification": "Comprehensive, accurate, and actionable security review with a detailed hardened example." }, { "judge_key": "mimo_v2_flash", "judge_name": "MiMo-V2-Flash", "respondent_key": "gemini_3_flash", "respondent_name": "Gemini 3 Flash Preview", "weighted_score": 10, "brief_justification": "Comprehensive, accurate, and well-structured analysis with clear fixes and a secure implementation summary." }, { "judge_key": "mimo_v2_flash", "judge_name": "MiMo-V2-Flash", "respondent_key": "minimax_m25", "respondent_name": "MiniMax M2.5", "weighted_score": 9, "brief_justification": "Comprehensive security review with accurate fixes, clear structure, and practical recommendations." } ], "meta": { "source": "The Multivac (app.themultivac.com)", "methodology": "10x10 blind peer matrix evaluation", "criteria": "correctness, completeness, clarity, depth, usefulness", "self_judgments": "excluded from rankings", "license": "Open data — cite as: The Multivac (2026)" } }