CVE-2026-14198 @fastify/middie vulnerable to authorization bypass via encoded slash in path parameter values

@fastify/middie versions 9.1.0 through 9.3.2 decode the encoded slash %2F inside path parameter values before matching middleware paths, while Fastify's underlying router preserves the encoding during route lookup. The two layers disagree on the canonical request path, so the middleware fails to...

EUVD-2026-40946

@fastify/middie versions 9.1.0 through 9.3.2 decode the encoded slash %2F inside path parameter values before matching middleware paths, while Fastify's underlying router preserves the encoding during route lookup. The two layers disagree on the canonical request path, so the middleware fails to...

CVE-2026-14198

@fastify/middie versions 9.1.0 through 9.3.2 decode the encoded slash %2F inside path parameter values before matching middleware paths, while Fastify's underlying router preserves the encoding during route lookup. The two layers disagree on the canonical request path, so the middleware fails to...

CVE-2026-14198

The CVE-2026-14198 entry concerns @fastify/middie versions 9.1.0–9.3.2, where encoded slashes (%2F) in path parameter values are decoded by middie but not by Fastify’s router during route lookup. This mismatch lets a crafted URL bypass middleware-based security (authentication/authorization/rate ...

PT-2026-54638

Name of the Vulnerable Software and Affected Versions @fastify/middie versions 9.1.0 through 9.3.2 Description An issue exists in the standalone engine's URL normalization and decoding process where malformed percent-encoded sequences in incoming request paths are not properly guarded...

PT-2026-54639

Name of the Vulnerable Software and Affected Versions @fastify/middie versions 9.1.0 through 9.3.2 Description An authorization bypass occurs because the software decodes the encoded slash %2F within path parameter values before matching middleware paths, whereas the underlying router preserves...

CVE-2026-6556

@fastify/express versions 4.0.6 and earlier only rewrite the plugin prefix for middleware mount paths when the path argument is a string. Non-string mount paths arrays of paths and regular expressions are left unprefixed inside prefixed plugin scopes, so middleware registered with those forms doe...

CVE-2026-6556 @fastify/express vulnerable to middleware bypass via non-string mount paths in prefixed plugins

@fastify/express versions 4.0.6 and earlier only rewrite the plugin prefix for middleware mount paths when the path argument is a string. Non-string mount paths arrays of paths and regular expressions are left unprefixed inside prefixed plugin scopes, so middleware registered with those forms doe...

CVE-2026-6556

@fastify/express versions 4.0.6 and earlier only rewrite the plugin prefix for middleware mount paths when the path argument is a string. Non-string mount paths arrays of paths and regular expressions are left unprefixed inside prefixed plugin scopes, so middleware registered with those forms doe...

CVE-2026-6556 @fastify/express vulnerable to middleware bypass via non-string mount paths in prefixed plugins

@fastify/express versions 4.0.6 and earlier only rewrite the plugin prefix for middleware mount paths when the path argument is a string. Non-string mount paths arrays of paths and regular expressions are left unprefixed inside prefixed plugin scopes, so middleware registered with those forms doe...

CVE-2026-6556

The CVE concerns @fastify/express 4.0.6 and earlier, where non-string mount paths (arrays/regex) are not prefixed inside prefixed plugin scopes. This causes middleware registered with those forms to not match the actual prefixed request path, potentially bypassing path-scoped security middleware ...

PT-2026-53878

Name of the Vulnerable Software and Affected Versions @fastify/express versions prior to 4.0.7 Description A middleware scoping flaw exists where plugin prefixes are not applied to middleware mount paths when the mount path is provided as an array or a regular expression. This occurs due to...

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 Nest: Middleware Bypass on Fastify via Trailing Slash

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

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

The CVE concerns NestJS with the Fastify adapter: an authentication bypass exists in @nestjs/platform-fastify before version 11.1.24 when middleware is registered via MiddlewareConsumer.forRoutes(). A trailing slash on the request URL can bypass route-specific Nest middleware on the default Fasti...

CVE-2026-54281 Nest: Middleware Bypass on Fastify via Trailing Slash

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...

Malicious code in @mastra/fastify (npm)

--- -= Per source details. Do not edit below this line.=- Source: amazon-inspector 1ba29e7c4e2320b4f5852c18ded92c92021cfbc47d5bf8146b1a93ffa58260c7 The package was found to contain malicious code or consuming dependency that contains malicious code Source: ghsa-malware...

MAL-2026-5949 Malicious code in @mastra/fastify (npm)

--- -= Per source details. Do not edit below this line.=- Source: amazon-inspector 1ba29e7c4e2320b4f5852c18ded92c92021cfbc47d5bf8146b1a93ffa58260c7 The package was found to contain malicious code or consuming dependency that contains malicious code Source: ghsa-malware...

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...