{"id":"CVE-2025-69211","sourceIdentifier":"security-advisories@github.com","published":"2025-12-29T16:15:44.237","lastModified":"2026-10-07T12:10:00.170","vulnStatus":"Analyzed","cveTags":[],"descriptions":[{"lang":"en","value":"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`."},{"lang":"es","value":"Nest es un framework para construir aplicaciones escalables de servidor Node.js. Las versiones anteriores a la 11.1.11 tienen un bypass de middleware de codificación de URL de Fastify. Una aplicación NestJS es vulnerable si utiliza '@nestjs/platform-fastify'; depende de 'NestMiddleware' (a través de 'MiddlewareConsumer') para comprobaciones de seguridad (autenticación, autorización, etc.), o a través de 'app.use()'; y aplica middleware a rutas específicas utilizando rutas de cadena o controladores (p. ej., '.forRoutes('admin')'). La explotación puede resultar en que usuarios no autenticados accedan a rutas protegidas, que endpoints administrativos restringidos sean accesibles para usuarios con privilegios más bajos, y/o que se omita el middleware que realiza la sanitización o validación. Este problema está parcheado en '@nestjs/platform-fastify@11.1.11'."}],"affected":[{"source":"security-advisories@github.com","affectedData":[{"vendor":"nestjs","product":"nest","versions":[{"version":"< 11.1.11","status":"affected"}]}]}],"metrics":{"cvssMetricV40":[{"source":"security-advisories@github.com","type":"Secondary","cvssData":{"version":"4.0","vectorString":"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","baseScore":6.9,"baseSeverity":"MEDIUM","attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"PRESENT","privilegesRequired":"NONE","userInteraction":"NONE","vulnConfidentialityImpact":"HIGH","vulnIntegrityImpact":"HIGH","vulnAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","subAvailabilityImpact":"NONE","exploitMaturity":"UNREPORTED","confidentialityRequirement":"NOT_DEFINED","integrityRequirement":"NOT_DEFINED","availabilityRequirement":"NOT_DEFINED","modifiedAttackVector":"NOT_DEFINED","modifiedAttackComplexity":"NOT_DEFINED","modifiedAttackRequirements":"NOT_DEFINED","modifiedPrivilegesRequired":"NOT_DEFINED","modifiedUserInteraction":"NOT_DEFINED","modifiedVulnConfidentialityImpact":"NOT_DEFINED","modifiedVulnIntegrityImpact":"NOT_DEFINED","modifiedVulnAvailabilityImpact":"NOT_DEFINED","modifiedSubConfidentialityImpact":"NOT_DEFINED","modifiedSubIntegrityImpact":"NOT_DEFINED","modifiedSubAvailabilityImpact":"NOT_DEFINED","Safety":"NOT_DEFINED","Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","valueDensity":"NOT_DEFINED","vulnerabilityResponseEffort":"NOT_DEFINED","providerUrgency":"NOT_DEFINED"}}],"cvssMetricV31":[{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N","baseScore":7.4,"baseSeverity":"HIGH","attackVector":"NETWORK","attackComplexity":"HIGH","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"NONE"},"exploitabilityScore":2.2,"impactScore":5.2}],"ssvcV203":[{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","ssvcData":{"timestamp":"2025-12-29T16:49:53.144372Z","id":"CVE-2025-69211","options":[{"exploitation":"poc"},{"automatable":"no"},{"technicalImpact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}]},"weaknesses":[{"source":"security-advisories@github.com","type":"Secondary","description":[{"lang":"en","value":"CWE-367"}]}],"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:nestjs:nest:*:*:*:*:*:node.js:*:*","versionEndExcluding":"11.1.11","matchCriteriaId":"603C14E6-3B30-42BC-A52B-34A65BC8FF8A"}]}]}],"references":[{"url":"https://github.com/nestjs/nest/commit/c4cedda15a05aafec1e6045b36b0335ab850e771","source":"security-advisories@github.com","tags":["Patch"]},{"url":"https://github.com/nestjs/nest/security/advisories/GHSA-8wpr-639p-ccrj","source":"security-advisories@github.com","tags":["Exploit","Vendor Advisory"]}]}