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...

@anchan828/nest-redis-session-fastify (>=0.0.46, <=0.0.86), @andreacioni/saml2-nest-lib (0.0.7) +220 more potentially affected by CVE-2026-33011 via @nestjs/platform-fastify (>=6.5.2, <=11.1.16)

@nestjs/platform-fastify NPM version =6.5.2, =0.0.46, =0.0.5, =1.0.0, =2.0.0, =0.0.1, =0.0.1, =4.23.1, =2.7.0, =6.3.1, =1.0.0, =1.0.0, =1.0.2 - @chisquare/ntx-core 0.0.1 and more Source cves: CVE-2026-33011 Source advisory: MEND:CVE-2026-33011...

CVE-2026-33011

CVE-2026-33011 affects Nest with @nestjs/platform-fastify: in versions 11.1.15 and earlier, Fastify’s HEAD-to-GET redirect can bypass GET middleware, causing middleware to be skipped while the GET handler still runs and the response lacks a body. The issue is fixed in version 11.1.16. Remediate b...

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...

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...

Nest security vulnerability

Nest is a Node.js framework developed by NestJS, designed for building efficient, scalable, and enterprise-level server-side applications using TypeScript/JavaScript. Versions of Nest 11.1.15 and earlier contain security vulnerabilities. These vulnerabilities stem from Fastify automatically...

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...

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...

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-2026-33011 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, =1.1.95 Source cves: CVE-2026-33011 Source advisory: OSV:GHSA-WF42-42FG-FG84...

@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, =1.1.95 Source cves: CVE-2026-33011 Source advisory: GHSA-WF42-42FG-FG84...

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...

PT-2026-25990

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-2026-30241

Mercurius is a GraphQL adapter for Fastify. Prior to version 16.8.0, Mercurius fails to enforce the configured queryDepth limit on GraphQL subscription queries received over WebSocket connections. The depth check is correctly applied to HTTP queries and mutations, but subscription queries are...

CVE-2026-30241 Mercurius: queryDepth limit bypassed for WebSocket subscriptions

Mercurius is a GraphQL adapter for Fastify. Prior to version 16.8.0, Mercurius fails to enforce the configured queryDepth limit on GraphQL subscription queries received over WebSocket connections. The depth check is correctly applied to HTTP queries and mutations, but subscription queries are...

CVE-2026-30241

Mercurius is a GraphQL adapter for Fastify. Prior to version 16.8.0, Mercurius fails to enforce the configured queryDepth limit on GraphQL subscription queries received over WebSocket connections. The depth check is correctly applied to HTTP queries and mutations, but subscription queries are...

CVE-2025-64166

Mercurius is a GraphQL adapter for Fastify. Prior to version 16.4.0, a cross-site request forgery CSRF vulnerability was identified. The issue arises from incorrect parsing of the Content-Type header in requests. Specifically, requests with Content-Type values such as...

CVE-2026-3419 Fastify's Missing End Anchor in "subtypeNameReg" Allows Malformed Content-Types to Pass Validation

Fastify incorrectly accepts malformed Content-Type headers containing trailing characters after the subtype token, in violation of RFC 9110 §8.3.1https://httpwg.org/specs/rfc9110.htmlfield.content-type. For example, a request sent with Content-Type: application/json garbage passes validation and ...

CVE-2026-3419

CVE-2026-3419 (Fastify) : A flaw allows RFC-invalid Content-Type headers with trailing characters to bypass validation and reach content-type parsers, potentially causing misinterpretation of requests. This affects Fastify's handling of Content-Type header parsing, including regex-based parsers, ...