GHSA-6V32-FJC9-9QF6 Nest: Middleware Bypass on Fastify via Trailing Slash

Impact An authentication bypass vulnerability exists in @nestjs/platform-fastify confirmed on version 11.1.24, the latest available release at time of report. When middleware is registered through NestJS's MiddlewareConsumer.forRoutes API on the Fastify adapter, an unauthenticated client can bypa...

@bechara/crux (>=6.0.0 <=6.6.2), @cappa/cli (>=0.1.0 <=0.8.2) +11 more potentially affected by CVE-2026-6270 via @fastify/middie (>=9.0.2 <=9.3.1)

@fastify/middie NPM version =9.0.2, =6.0.0, =0.1.0, =0.1.0, =1.0.0, =1.0.11, =0.1.51, =1.0.36, =11.0.0, =1.3.0, =5.0.0, =0.6.1-dev, =1.1.48 Source cves: CVE-2026-6270 Source advisory: SNYK:JS-FASTIFYMIDDIE-16098213...

EUVD-2026-9034

A NestJS application using @nestjs/platform-fastify can allow bypass of authentication/authorization middleware when Fastify path-normalization options are enabled. This issue affects nest.Js: 11.1.13...

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

Overview @nestjs/platform-fastify is a Nest - modern, fast, powerful node.js web framework @platform-fastify Affected versions of this package are vulnerable to Time-of-check Time-of-use TOCTOU Race Condition in the URL encoding middleware, allowing it to be bypassed in certain configurations. An...

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...

@falkor/falkor-auth-server (=1.1.1), @figedi/sentry-fastify (=1.0.6) +6 more potentially affected by CVE-2022-41919 via fastify (>=4.0.2 <=4.10.0)

fastify NPM version =4.0.2, =0.0.2, =0.0.16 - verdaccio =6.0.0-6-next.52 Source cves: CVE-2022-41919 Source advisory: OSV:GHSA-3FJJ-P79J-C9HH...