CVE-2025-66490 Traefik doesn't Prevent Path Normalization Bypass in Router + Middleware Rules

Traefik is an HTTP reverse proxy and load balancer. For versions prior to 2.11.32 and 2.11.31 through 3.6.2, requests using PathPrefix, Path or PathRegex matchers can bypass path normalization. When Traefik uses path-based routing, requests containing URL-encoded restricted characters /, , Null,...

CVE-2025-66490

CVE-2025-66490 affects Traefik, where versions prior to 2.11.32 and 2.11.31–3.6.2 could bypass path normalization when using PathPrefix, Path, or PathRegex matchers. Under path-based routing, requests containing URL-encoded restricted characters (/, , Null, ;, ?, #) may bypass the middleware chai...

CVE-2025-66490 Traefik doesn't Prevent Path Normalization Bypass in Router + Middleware Rules

Traefik is an HTTP reverse proxy and load balancer. For versions prior to 2.11.32 and 2.11.31 through 3.6.2, requests using PathPrefix, Path or PathRegex matchers can bypass path normalization. When Traefik uses path-based routing, requests containing URL-encoded restricted characters /, , Null,...

Interpretation Conflict

Overview Affected versions of this package are vulnerable to Interpretation Conflict in path matching. An attacker can gain unauthorized access to restricted endpoints by sending requests with URL-encoded restricted characters in the path, which bypasses middleware and security controls...

Interpretation Conflict

Overview Affected versions of this package are vulnerable to Interpretation Conflict in path matching. An attacker can gain unauthorized access to restricted endpoints by sending requests with URL-encoded restricted characters in the path, which bypasses middleware and security controls...

GHSA-GM3X-23WP-HC2C Path Normalization Bypass in Traefik Router + Middleware Rules

Impact There is a potential vulnerability in Traefik managing the requests using a PathPrefix, Path or PathRegex matcher. When Traefik is configured to route the requests to a backend using a matcher based on the path; if the request path contains an encoded restricted character from the followin...

Path Normalization Bypass in Traefik Router + Middleware Rules

Impact There is a potential vulnerability in Traefik managing the requests using a PathPrefix, Path or PathRegex matcher. When Traefik is configured to route the requests to a backend using a matcher based on the path; if the request path contains an encoded restricted character from the followin...

Interpretation Conflict

Overview Affected versions of this package are vulnerable to Interpretation Conflict in path matching. An attacker can gain unauthorized access to restricted endpoints by sending requests with URL-encoded restricted characters in the path, which bypasses middleware and security controls...

Interpretation Conflict

Overview Affected versions of this package are vulnerable to Interpretation Conflict in path matching. An attacker can gain unauthorized access to restricted endpoints by sending requests with URL-encoded restricted characters in the path, which bypasses middleware and security controls...

Interpretation Conflict

Overview Affected versions of this package are vulnerable to Interpretation Conflict in path matching. An attacker can gain unauthorized access to restricted endpoints by sending requests with URL-encoded restricted characters in the path, which bypasses middleware and security controls...

Interpretation Conflict

Overview github.com/traefik/traefik/v2/pkg/server is a server package for traefik, a cloud native edge router. Affected versions of this package are vulnerable to Interpretation Conflict in path matching. An attacker can gain unauthorized access to restricted endpoints by sending requests with...

Medium: curl

Issue Overview: wcurl path traversal with percent-encoded slashes URLs containing percent-encoded slashes / or \ can trick wcurl into saving the output file outside of the current directory without the user explicitly asking for it. CVE-2025-11563 Affected Packages: curl Note: This advisory is...

PT-2025-49684

Name of the Vulnerable Software and Affected Versions Traefik versions prior to 2.11.32 and 2.11.31 through 3.6.2 Description Traefik is an HTTP reverse proxy and load balancer. Requests using PathPrefix, Path, or PathRegex matchers can bypass path normalization. When Traefik uses path-based...

traefik -- Bypassing security controls via special characters

The traefik project reports: There is a potential vulnerability in Traefik managing the requests using a PathPrefix, Path or PathRegex matcher. When Traefik is configured to route the requests to a backend using a matcher based on the path; if the request path contains an encoded restricted...

Linux Distros Unpatched Vulnerability : CVE-2025-40241

"The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - erofs: fix crafted invalid cases for encoded extents Robert recently reported two corrupted images that can cause system crashes, which are related to the new...

Amazon Linux 2 : curl, --advisory ALAS2-2025-3088 (ALAS-2025-3088)

The version of curl installed on the remote host is prior to 8.3.0-1. It is, therefore, affected by a vulnerability as referenced in the ALAS2-2025-3088 advisory. wcurl path traversal with percent-encoded slashes URLs containing percent-encoded slashes / or \ can trick wcurl into saving the outpu...

CVE-2025-40241

In the Linux kernel, the following vulnerability has been resolved: erofs: fix crafted invalid cases for encoded extents Robert recently reported two corrupted images that can cause system crashes, which are related to the new encoded extents introduced in Linux 6.15: - The first one 1 has plen !...

EUVD-2025-201394

Server-Side Request Forgery SSRF vulnerability in Apache HTTP Server on Windows with AllowEncodedSlashes On and MergeSlashes Off allows to potentially leak NTLM hashes to a malicious server via SSRF and malicious requests or content Users are recommended to upgrade to version 2.4.66, which fixes...

DEBIAN-CVE-2025-59775

Server-Side Request Forgery SSRF vulnerability in Apache HTTP Server on Windows with AllowEncodedSlashes On and MergeSlashes Off allows to potentially leak NTLM hashes to a malicious server via SSRF and malicious requests or content Users are recommended to upgrade to version 2.4.66, which fixes...

CVE-2025-59775 Apache HTTP Server: NTLM Leakage on Windows through UNC SSRF

Server-Side Request Forgery SSRF vulnerability in Apache HTTP Server on Windows with AllowEncodedSlashes On and MergeSlashes Off allows to potentially leak NTLM hashes to a malicious server via SSRF and malicious requests or content Users are recommended to upgrade to version 2.4.66, which fixes...