@nestjs/platform-fastify: Path-scoped middleware bypass via absolute-form request targets

| Field | Value | | --- | --- | | Ecosystem | npm | | Package | @nestjs/platform-fastify | | Affected versions | = 12.0.0, 12.0.2 and 11.2.4 | | Patched versions | 12.0.2 and 11.2.4 upgrade to 12.0.3 / 11.2.5 | Summary On the Fastify adapter, an HTTP request that uses an absolute-form request...

CVE-2026-54281

Nest is a framework for building scalable Node.js server-side applications. Prior to 11.1.24, an authentication bypass vulnerability exists in @nestjs/platform-fastify. When middleware is registered through NestJS's MiddlewareConsumer.forRoutes API on the Fastify adapter, an unauthenticated clien...

CVE-2026-54281: Incorrect Authorization

Nest is a framework for building scalable Node.js server-side applications. Prior to 11.1.24, an authentication bypass vulnerability exists in @nestjs/platform-fastify. When middleware is registered through NestJS's MiddlewareConsumer.forRoutes API on the Fastify adapter, an unauthenticated clien...

Authentication Bypass

@nestjs/platform-fastify is vulnerable to Authentication Bypass. The vulnerability is due to improper route matching between Fastify and NestJS middleware registered through MiddlewareConsumer.forRoutes, which allows an attacker to bypass authentication middleware by appending a trailing slash / ...

@bechara/crux (>=6.0.0-alpha.1, <=6.6.2), @dismissible/nestjs-api (>=1.0.3-alpha.0b30e6d.0, <=2.0.2-canary.2913ba8.0) +9 more potentially affected by CVE-2026-54281 via @nestjs/platform-fastify (>=11.0.1, <=11.1.24)

@nestjs/platform-fastify NPM version =11.0.1, =6.0.0-alpha.1, =1.0.3-alpha.0b30e6d.0, =1.0.11, =0.1.51, =1.0.36, =1.3.0, =11.1.0, =2.6.18, =5.0.0-beta.36, =0.6.1-dev, =0.1.0, =1.0.0 Source cves: CVE-2026-54281 Source advisory: SNYK:JS-NESTJSPLATFORMFASTIFY-17374830...

Incorrect Authorization

Overview @nestjs/platform-fastify is a Nest - modern, fast, powerful node.js web framework @platform-fastify Affected versions of this package are vulnerable to Incorrect Authorization via the MiddlewareConsumer.forRoutes API on the Fastify adapter. An attacker can gain unauthorized access to...

@bechara/crux (>=6.0.0-alpha.1, <=6.6.2), @dismissible/nestjs-api (>=1.0.3-alpha.0b30e6d.0, <=2.0.2-canary.2913ba8.0) +8 more potentially affected by CVE-2026-54281 via @nestjs/platform-fastify (>=11.0.1, <=11.1.23)

@nestjs/platform-fastify NPM version =11.0.1, =6.0.0-alpha.1, =1.0.3-alpha.0b30e6d.0, =1.0.11, =0.1.51, =1.0.36, =1.3.0, =2.6.18, =5.0.0-beta.36, =0.6.1-dev, =0.1.0, =1.0.0 Source cves: CVE-2026-54281 Source advisory: OSV:GHSA-6V32-FJC9-9QF6...

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...

CVE-2026-33011: Always-Incorrect Control Flow Implementation

Nest is a framework for building scalable Node.js server-side applications. In versions 11.1.15 and below, a NestJS application using @nestjs/platform-fastify GET middleware can be bypassed because Fastify automatically redirects HEAD requests to the corresponding GET handlers if they exist. As a...

@bechara/crux (>=6.0.0-alpha.1, <=6.6.2), @dismissible/nestjs-api (>=1.0.3-alpha.0b30e6d.0, <=2.0.2-canary.2913ba8.0) +6 more potentially affected by CVE-2026-33011 via @nestjs/platform-fastify (>=11.0.1, <=11.1.15)

@nestjs/platform-fastify NPM version =11.0.1, =6.0.0-alpha.1, =1.0.3-alpha.0b30e6d.0, =1.0.11, =0.1.51, =1.0.36, =1.3.0, =5.0.0-beta.36, =0.6.1-dev, =1.1.69 Source cves: CVE-2026-33011 Source advisory: OSV:GHSA-WF42-42FG-FG84...

Nest Fastify HEAD Request Middleware Bypass

Impact In a NestJS application using @nestjs/platform-fastify, GET middleware can be bypassed because Fastify automatically redirects HEAD requests to the corresponding GET handlers if they exist. As a result: - Middleware will be completely skipped. - The HTTP response won't include a body since...

@bechara/crux (>=6.0.0-alpha.1, <=6.6.2), @dismissible/nestjs-api (>=1.0.3-alpha.0b30e6d.0, <=2.0.2-canary.2913ba8.0) +6 more potentially affected by CVE-2026-2293 via @nestjs/platform-fastify (>=11.0.1, <=11.1.13)

@nestjs/platform-fastify NPM version =11.0.1, =6.0.0-alpha.1, =1.0.3-alpha.0b30e6d.0, =1.0.11, =0.1.51, =1.0.36, =1.3.0, =5.0.0-beta.36, =0.6.1-dev, =1.1.69 Source cves: CVE-2026-2293 Source advisory: OSV:GHSA-R4WM-X892-VJMX...

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...

Incorrect Authorization

Overview @nestjs/platform-fastify is a Nest - modern, fast, powerful node.js web framework @platform-fastify Affected versions of this package are vulnerable to Incorrect Authorization when Fastify path-normalization options e.g., ignoreTrailingSlash, ignoreDuplicateSlashes, useSemicolonDelimiter...

@sync-in/server (2.0.0), homebridge-config-ui-x (>=5.15.3-beta.3, <=5.17.1-beta.3) potentially affected by CVE-2026-2293 via @nestjs/platform-fastify (11.1.13)

@nestjs/platform-fastify NPM version 11.1.13 is affected by a known vulnerability. The following packages have a transitive dependency on @nestjs/platform-fastify and may be impacted: - @sync-in/server 2.0.0 - homebridge-config-ui-x =5.15.3-beta.3, =5.17.1-beta.3 Source cves: CVE-2026-2293 Source...

CVE-2026-2293

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...

PT-2026-22347

Name of the Vulnerable Software and Affected Versions Nest.js version 11.1.13 Description A NestJS application utilizing the @nestjs/platform-fastify package may experience a bypass of authentication and authorization middleware when Fastify path-normalization options are enabled. This can...

@bechara/crux (>=6.0.0-alpha.1, <=6.6.2), @dismissible/nestjs-api (1.0.3-alpha.cdc64a4.0) +6 more potentially affected by CVE-2025-69211 via @nestjs/platform-fastify (>=11.0.1, <=11.1.10)

@nestjs/platform-fastify NPM version =11.0.1, =6.0.0-alpha.1, =1.0.11, =0.1.51, =1.0.36, =1.3.0, =5.0.0-beta.36, =0.6.1-dev, =1.1.69 Source cves: CVE-2025-69211 Source advisory: OSV:GHSA-8WPR-639P-CCRJ...

@bechara/crux (>=6.0.0-alpha.1, <=6.6.2), @dismissible/nestjs-api (1.0.3-alpha.cdc64a4.0) +6 more potentially affected by CVE-2025-69211 via @nestjs/platform-fastify (>=11.0.1, <=11.1.10)

@nestjs/platform-fastify NPM version =11.0.1, =6.0.0-alpha.1, =1.0.11, =0.1.51, =1.0.36, =1.3.0, =5.0.0-beta.36, =0.6.1-dev, =1.1.69 Source cves: CVE-2025-69211 Source advisory: SNYK:JS-NESTJSPLATFORMFASTIFY-14724255...

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...