{"id":"CVE-2025-69211","title":"Nest is a framework for building scalable Node.js server-side applications","summary":"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 `Nes…","severity":"high","cvss":7.4,"cvssVector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N","cwe":["CWE-367"],"vendor":"nestjs","product":"nest","affected":["nest < 11.1.11"],"patched":["nest 11.1.11"],"published":"2025-12-29","updated":"2026-10-05","sourceUpdated":"2026-10-05T19:10:00.210","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2025-69211","references":[{"url":"https://github.com/nestjs/nest/commit/c4cedda15a05aafec1e6045b36b0335ab850e771","label":"security-advisories@github.com"},{"url":"https://github.com/nestjs/nest/security/advisories/GHSA-8wpr-639p-ccrj","label":"security-advisories@github.com"}],"tags":["nvd"],"epss":0.00382,"epssPercentile":0.29873,"ingestedAt":"2026-10-05T19:30:59.957Z","slug":"CVE-2025-69211","body":"## Overview\n\nNest 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`.\n\n## Affected\n\n- `nest < 11.1.11`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `nest 11.1.11`","depth":"twilight","depthScore":41,"depthScoreParts":{"impact":40.7,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}