Kevin Pollet

3 exploits Active since Apr 2024
CVE-2024-28869 WRITEUP HIGH WRITEUP
Traefik < 2.11.2 and 3.0.0-beta3-3.0.0-rc5 - Denial of Service via Content-Length Header
Traefik is an HTTP reverse proxy and load balancer. In affected versions sending a GET request to any Traefik endpoint with the "Content-length" request header results in an indefinite hang with the default configuration. This vulnerability can be exploited by attackers to induce a denial of service. This vulnerability has been addressed in version 2.11.2 and 3.0.0-rc5. Users are advised to upgrade. For affected versions, this vulnerability can be mitigated by configuring the readTimeout option.
CVSS 7.5
CVE-2025-47952 WRITEUP CRITICAL WRITEUP
Traefik < 2.11.25 and < 3.4.1 - Path Traversal via URL-Encoded Path Bypass
Traefik (pronounced traffic) is an HTTP reverse proxy and load balancer. Prior to versions 2.11.25 and 3.4.1, 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 URL contains a URL encoded string in its path, it’s possible to target a backend, exposed using another router, by-passing the middlewares chain. This issue has been patched in versions 2.11.25 and 3.4.1.
CVSS 9.1
CVE-2026-22045 WRITEUP MEDIUM WRITEUP
Traefik < 2.11.35 and 3.0-3.6.7 - Denial of Service via ACME TLS-ALPN Challenge
Traefik is an HTTP reverse proxy and load balancer. Prior to 2.11.35 and 3.6.7, there is a potential vulnerability in Traefik ACME TLS certificates' automatic generation: the ACME TLS-ALPN fast path can allow unauthenticated clients to tie up go routines and file descriptors indefinitely when the ACME TLS challenge is enabled. A malicious client can open many connections, send a minimal ClientHello with acme-tls/1, then stop responding, leading to denial of service of the entry point. The vulnerability is fixed in 2.11.35 and 3.6.7.
CVSS 5.9