CVE-2026-29777

CVE-2026-29777 · Traefik has a kubernetes gateway rule injection via unescaped backticks in HTTPRoute match values

This page contains facts from public vulnerability sources. Check the original advisory before updating.

Traefik is an HTTP reverse proxy and load balancer. Prior to 3.6.10, A tenant with write access to an HTTPRoute resource can inject backtick-delimited rule tokens into Traefik's router rule language via unsanitized header or query parameter match values. In shared gateway deployments, this can bypass listener hostname constraints and redirect traffic for victim hostnames to attacker-controlled backends. This vulnerability is fixed in 3.6.10.

CVSS 6.1 · Medium · EPSS 0.4%

Published

2026-03-11T15:54:17.219Z

Updated

2026-03-11T17:22:36.189Z

Stack: web

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