CVE-2025-69211

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`.

CVSS v3 7.4 HIGH

7.4^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.2 / Impact : 5.2

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://github.com/nestjs/nest/commit/c4cedda15a05aafec1e6045b36b0335ab850e771	Patch
https://github.com/nestjs/nest/security/advisories/GHSA-8wpr-639p-ccrj	Exploit Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:nestjs:nest:*:*:*:*:*:node.js:*:*

History

20 Feb 2026, 16:58

Type	Values Removed	Values Added
References	~~() https://github.com/nestjs/nest/commit/c4cedda15a05aafec1e6045b36b0335ab850e771 -~~	() https://github.com/nestjs/nest/commit/c4cedda15a05aafec1e6045b36b0335ab850e771 - Patch
References	~~() https://github.com/nestjs/nest/security/advisories/GHSA-8wpr-639p-ccrj -~~	() https://github.com/nestjs/nest/security/advisories/GHSA-8wpr-639p-ccrj - Exploit, Vendor Advisory
CPE		cpe:2.3:a:nestjs:nest::::::node.js::*
First Time		Nestjs Nestjs nest
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 7.4

29 Dec 2025, 16:15

Type	Values Removed	Values Added
New CVE

Information

Published : 2025-12-29 16:15

Updated : 2026-02-20 16:58

NVD link : CVE-2025-69211

Mitre link : CVE-2025-69211

CVE.ORG link : CVE-2025-69211

JSON object : View

Products Affected

nestjs

nest

CWE

CWE-367

Time-of-check Time-of-use (TOCTOU) Race Condition

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