CVE-2026-33011

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...

CVE-2026-33011 Nest Fastify HEAD Request Middleware Bypass

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...

CVE-2026-33011 Nest Fastify HEAD Request Middleware Bypass

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...

Always-Incorrect Control Flow Implementation

Overview @nestjs/core is a Nest - modern, fast, powerful node.js web framework @core Affected versions of this package are vulnerable to Always-Incorrect Control Flow Implementation when handling a @nestjs/platform-fastify HEAD request. An attacker can bypass middleware logic by sending malicious...

@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, =1.1.48 Source cves: CVE-2026-33011 Source advisory: OSV:GHSA-WF42-42FG-FG84...

@142vip/nest (>=0.0.1-alpha.2, <=0.0.1-alpha.10), @142vip/nest-starter (>=0.0.1-alpha.9, <=0.0.1-alpha.14) +87 more potentially affected by CVE-2026-33011 via @nestjs/core (>=11.0.0, <=11.1.16)

@nestjs/core NPM version =11.0.0, =0.0.1-alpha.2, =0.0.1-alpha.9, =0.0.1, =13.3.0-rc.7, =1.1.3, =6.0.0-alpha.1, =3.8.8, =1.114.0, =3.8.8, =1.0.3-alpha.0b30e6d.0, =20250227.0.1, =0.0.1, =0.0.2 and more Source cves: CVE-2026-33011 Source advisory: SNYK:JS-NESTJSCORE-15682556...

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...

org.webjars.npm:browser-sync-ui (2.27.11), org.webjars.npm:nestjs__platform-socket.io (9.0.0-next.2) +3 more potentially affected by CVE-2026-33151 via org.webjars.npm:socket.io-parser (>=2.3.1, <=4.2.5)

org.webjars.npm:socket.io-parser MAVEN version =2.3.1, =0.3.1, =0.5.0 - org.webjars.npm:socket.io-client 4.8.3 Source cves: CVE-2026-33151 Source advisory: SNYK:JAVA-ORGWEBJARSNPM-15680279...

org.webjars.npm:nestjs__platform-express (>=8.4.7, <=9.0.0-next.2) potentially affected by CVE-2026-3520 via org.webjars.npm:multer (1.4.4-lts.1)

org.webjars.npm:multer MAVEN version 1.4.4-lts.1 is affected by a known vulnerability. The following packages have a transitive dependency on org.webjars.npm:multer and may be impacted: - org.webjars.npm:nestjsplatform-express =8.4.7, =9.0.0-next.2 Source cves: CVE-2026-3520 Source advisory:...

@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, =1.1.48 Source cves: CVE-2026-2293 Source advisory: OSV:GHSA-R4WM-X892-VJMX...

Nest has a Fastify URL Encoding Middleware Bypass

Impact What kind of vulnerability is it? Who is impacted? A NestJS application using @nestjs/platform-fastify can allow bypass of any middleware when Fastify path-normalization options e.g., ignoreTrailingSlash, ignoreDuplicateSlashes, useSemicolonDelimiter are enabled. In affected route-scoped...

GHSA-R4WM-X892-VJMX Nest has a Fastify URL Encoding Middleware Bypass

Impact What kind of vulnerability is it? Who is impacted? A NestJS application using @nestjs/platform-fastify can allow bypass of any middleware when Fastify path-normalization options e.g., ignoreTrailingSlash, ignoreDuplicateSlashes, useSemicolonDelimiter are enabled. In affected route-scoped...

CVE-2026-2293

A flaw was found in NestJS. When a NestJS application uses @nestjs/platform-fastify with Fastify path-normalization options enabled, a remote attacker can exploit this to bypass authentication and authorization middleware. This bypass allows unauthorized access to protected resources, compromisin...

org.webjars.npm:nestjs__platform-express (>=8.4.7, <=9.0.0-next.2) potentially affected by CVE-2026-2359 via org.webjars.npm:multer (1.4.4-lts.1)

org.webjars.npm:multer MAVEN version 1.4.4-lts.1 is affected by a known vulnerability. The following packages have a transitive dependency on org.webjars.npm:multer and may be impacted: - org.webjars.npm:nestjsplatform-express =8.4.7, =9.0.0-next.2 Source cves: CVE-2026-2359 Source advisory:...

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...

GHSA-7Q64-3RG2-H9PF Duplicate Advisory: Nest has a Fastify URL Encoding Middleware Bypass

Duplicate Advisory This advisory has been withdrawn because it is a duplicate of GHSA-r4wm-x892-vjmx. This link is maintained to preserve external references. Original Description A NestJS application using @nestjs/platform-fastify can allow bypass of authentication/authorization middleware when...

Duplicate Advisory: Nest has a Fastify URL Encoding Middleware Bypass

Duplicate Advisory This advisory has been withdrawn because it is a duplicate of GHSA-r4wm-x892-vjmx. This link is maintained to preserve external references. Original Description A NestJS application using @nestjs/platform-fastify can allow bypass of authentication/authorization middleware when...

org.webjars.npm:nestjs__platform-express (>=8.4.7, <=9.0.0-next.2) potentially affected by CVE-2026-3304 via org.webjars.npm:multer (1.4.4-lts.1)

org.webjars.npm:multer MAVEN version 1.4.4-lts.1 is affected by a known vulnerability. The following packages have a transitive dependency on org.webjars.npm:multer and may be impacted: - org.webjars.npm:nestjsplatform-express =8.4.7, =9.0.0-next.2 Source cves: CVE-2026-3304 Source advisory:...

@ama-sdk/create (>=14.1.0-prerelease.11, <=14.1.0-prerelease.39), @gen-epix/generate-api (0.0.19) +21 more potentially affected by CVE-2026-2293 via @nestjs/core (11.1.13)

@nestjs/core NPM version 11.1.13 is affected by a known vulnerability. The following packages have a transitive dependency on @nestjs/core and may be impacted: - @ama-sdk/create =14.1.0-prerelease.11, =1.0.41, =1.2.0, =1.2.1, =11.14.0, =2.28.1, =0.1.1, =0.15.1 and more Source cves: CVE-2026-2293...

Incorrect Authorization

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