{"id":"EUVD-2025-205611","revision":null,"records":[{"revision":"11bccdc3ebd44f6b9161c2e2ac168c82","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2025-69211","aliases":[],"title":"Nest has a Fastify URL Encoding Middleware Bypass (TOCTOU)","description":"Nest is a framework for building scalable Node.js server-side applications. Versions prior to 11.1.11 have a Fastify URL encoding middleware bypass. A NestJS application is vulnerable if it uses `@nestjs/platform-fastify`; relies on `NestMiddleware` (via `MiddlewareConsumer`) for security checks (authentication, authorization, etc.), or through `app.use()`; and applies middleware to specific routes using string paths or controllers (e.g., `.forRoutes('admin')`). Exploitation can result in unauthenticated users accessing protected routes, restricted administrative endpoints becoming accessible to lower-privileged users, and/or middleware performing sanitization or validation being skipped. This issue is patched in `@nestjs/platform-fastify@11.1.11`.","state":0,"publishedAt":"2025-12-29T16:01:22.801+00:00","modifiedAt":"2025-12-29T16:50:02.429+00:00","affected":[{"ecosystem":"Vendor product","name":"nest","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"nestjs\",\n                    \"product\": \"nest\",\n                    \"versions\": [\n                        {\n                            \"version\": \"< 11.1.11\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:U","score":6.9,"severity":"MEDIUM"}],"references":["https://github.com/nestjs/nest/security/advisories/GHSA-8wpr-639p-ccrj","https://github.com/nestjs/nest/commit/c4cedda15a05aafec1e6045b36b0335ab850e771"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2025-69211","license":"CVE Program Terms of Use","key":"cve-program:CVE-2025-69211","identifiers":["CVE-2025-69211"]},"retained":false,"historicalAffected":[]},{"revision":"dd120c17b9da47e1893f56ef24d64544","observedAt":"2026-11-11T04:36:29.173+00:00","statement":{"source":"euvd","id":"EUVD-2025-205611","aliases":["CVE-2025-69211","GHSA-8wpr-639p-ccrj"],"title":"Nest is a framework for building scalable Node.js server-side applications. 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This issue is patched in `@nestjs/platform-fastify@11.1.11`.","state":0,"publishedAt":"2025-12-29T16:15:44.237+00:00","modifiedAt":"2026-10-07T12:10:00.17+00:00","affected":[],"metrics":[{"system":"CVSS 4.0 · security-advisories@github.com · Secondary","vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","score":6.9,"severity":"MEDIUM"},{"system":"CVSS 3.1 · nvd@nist.gov · Primary","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N","score":7.4,"severity":"HIGH"}],"references":["https://github.com/nestjs/nest/commit/c4cedda15a05aafec1e6045b36b0335ab850e771","https://github.com/nestjs/nest/security/advisories/GHSA-8wpr-639p-ccrj"],"sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2025-69211","license":"NIST NVD usage terms; underlying source attribution retained","enrichment":{"sourceStatus":"Analyzed","weaknesses":["CWE-367"],"productCriteria":["cpe:2.3:a:nestjs:nest:*:*:*:*:*:node.js:*:*"],"sourceDates":{"published":"2025-12-29T16:15:44.237","lastModified":"2026-10-07T12:10:00.170"},"relatedAdvisories":[],"note":"NVD analysis and CPE criteria are source context, not proof that a package or your environment is affected. 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Routing: Applies middleware to specific routes using string paths or controllers (e.g., `.forRoutes('admin')`).\nExample Vulnerable Config:\n\n```ts\n// app.module.ts\nexport class AppModule implements NestModule {\n  configure(consumer: MiddlewareConsumer) {\n    consumer\n      .apply(AuthMiddleware) // Security check\n      .forRoutes('admin');   // Vulnerable: Path-based restriction\n  }\n}\n```\n\nAttack Vector:\n\n- Target Route: `/admin`\n- Middleware Path: `admin`\n- Attack Request: `GET /%61dmin`\n- Result: Middleware is skipped (no match on `%61dmin`), but controller for `/admin` is executed.\n\nConsequences:\n\n- Authentication Bypass: Unauthenticated users can access protected routes.\n- Authorization Bypass: Restricted administrative endpoints become accessible to lower-privileged users.\n- Input Validation Bypass: Middleware performing sanitization or validation can be skipped.\n\n### Patches\n\nPatched in `@nestjs/platform-fastify@11.1.11`\n\n### Resources\n\nCredit goes to Hacktron AI for reporting this issue.","state":0,"publishedAt":"2025-12-30T15:32:44+00:00","modifiedAt":"2025-12-30T15:42:33.016579+00:00","affected":[{"ecosystem":"npm","name":"@nestjs/platform-fastify","ranges":[{"type":"SEMVER","events":[{"kind":"introduced","version":"0"},{"kind":"fixed","version":"11.1.11"}]}],"versions":[],"rawVersionEvidence":null}],"metrics":[{"system":"CVSS_V4","vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:U","score":null,"severity":null},{"system":"Publisher rating","vector":null,"score":null,"severity":"MODERATE"}],"references":["https://github.com/nestjs/nest/security/advisories/GHSA-8wpr-639p-ccrj","https://nvd.nist.gov/vuln/detail/CVE-2025-69211","https://github.com/nestjs/nest/commit/c4cedda15a05aafec1e6045b36b0335ab850e771","https://github.com/nestjs/nest"],"sourceUrl":"https://github.com/advisories/GHSA-8wpr-639p-ccrj","license":"GitHub Advisory Database · CC-BY-4.0","key":"osv:GHSA-8wpr-639p-ccrj","identifiers":["GHSA-8wpr-639p-ccrj","CVE-2025-69211"]},"retained":false,"historicalAffected":[]}],"coverage":[{"source":"cisa-kev:global","scope":"Complete CISA KEV catalog; all vendors. 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