CVE-2026-18427

@fastify/static before version 10.1.3 contains an incomplete fix for a previous route guard bypass. The static file handler rejected only parent directory segments, but it did not canonicalize dot segments, duplicate slashes, encoded dots, or backslashes before route matching and before delegatin...

CVE-2026-18427 @fastify/static vulnerable to route guard bypass via non-canonical path segments

@fastify/static before version 10.1.3 contains an incomplete fix for a previous route guard bypass. The static file handler rejected only parent directory segments, but it did not canonicalize dot segments, duplicate slashes, encoded dots, or backslashes before route matching and before delegatin...

GHSA-8PVW-JCV7-9CMJ @fastify/static vulnerable to Authorization Bypass via Non-Canonical URL Paths

Impact @fastify/static evaluates the allowedPath callback before normalizing dot segments and duplicate slashes in the pathname used for file resolution. Non-canonical pathnames such as //file, /./file, or /public/../private/file bypass allowedPath filtering while resolving to the intended file o...

EUVD-2026-47870

@fastify/static vulnerable to Authorization Bypass via Non-Canonical URL Paths...

Incorrect Behavior Order: Validate Before Canonicalize

Overview @fastify/static is a Plugin for serving static files as fast as possible. Affected versions of this package are vulnerable to Incorrect Behavior Order: Validate Before Canonicalize via non-canonical URL path handling in the allowedPath check in index.js. An attacker can bypass file/subtr...

CVE-2026-7120

The CVE-2026-7120 issue affects @fastify/static (versions up to and including 10.1.1). The root cause is that allowedPath is evaluated before normalizing dot segments and duplicate separators in the request pathname, allowing an unauthenticated attacker to bypass path-based filtering by using equ...

CVE-2026-7120 @fastify/static vulnerable to Authorization Bypass via Non-Canonical URL Paths

@fastify/static evaluates the allowedPath callback before normalizing dot segments and duplicate path separators in the pathname used for file resolution. Versions up to and including 10.1.1 are affected. An unauthenticated attacker can bypass allowedPath restrictions by requesting equivalent...

PT-2026-63567

Name of the Vulnerable Software and Affected Versions @fastify/static versions prior to 10.1.2 Description An unauthenticated attacker can bypass path-based filtering because the allowedPath callback is evaluated before the normalization of dot segments and duplicate path separators in the pathna...

Use of Non-Canonical URL Paths for Authorization Decisions

Overview Affected versions of this package are vulnerable to Use of Non-Canonical URL Paths for Authorization Decisions in the cleanUsername process. An attacker can gain unauthorized access to another user's files by registering a username that normalizes to the same home directory as an existin...

Use of Non-Canonical URL Paths for Authorization Decisions

Overview Affected versions of this package are vulnerable to Use of Non-Canonical URL Paths for Authorization Decisions in the cleanUsername process. An attacker can gain unauthorized access to another user's files by registering a username that normalizes to the same home directory as an existin...

Use of Non-Canonical URL Paths for Authorization Decisions

Overview Affected versions of this package are vulnerable to Use of Non-Canonical URL Paths for Authorization Decisions in the cleanUsername process. An attacker can gain unauthorized access to another user's files by registering a username that normalizes to the same home directory as an existin...

CVE-2026-35338

A vulnerability in the chmod utility of uutils coreutils allows users to bypass the --preserve-root safety mechanism. The implementation only validates if the target path is literally / and does not canonicalize the path. An attacker or accidental user can use path variants such as /../ or symbol...

CVE-2026-35338 uutils coreutils chmod Path Traversal Bypass of --preserve-root

A vulnerability in the chmod utility of uutils coreutils allows users to bypass the --preserve-root safety mechanism. The implementation only validates if the target path is literally / and does not canonicalize the path. An attacker or accidental user can use path variants such as /../ or symbol...

ROS-20251223-7315

Vulnerability in php-symfony4 related to the use of non-canonical url-paths for authorization solutions. Exploitation of the vulnerability could allow an attacker acting remotely to escalate their privileges...

VulnCheck KEV: CVE-2022-43939

Hitachi Vantara Pentaho BA Server contains a use of non-canonical URL paths for authorization decisions vulnerability that enables an attacker to bypass authorization...

PYSEC-2020-43

An issue was discovered in Flask-CORS aka CORS Middleware for Flask before 3.0.9. It allows ../ directory traversal to access private resources because resource matching does not ensure that pathnames are in a canonical format...