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.

Project Subscriptions

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Advisories
Source ID Title
Github GHSA Github GHSA GHSA-8q2w-wr49-whqj Traefik: kubernetes gateway rule injection via unescaped backticks in HTTPRoute match values
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Wed, 11 Mar 2026 18:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Wed, 11 Mar 2026 16:15:00 +0000

Type Values Removed Values Added
Description 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.
Title Traefik has a kubernetes gateway rule injection via unescaped backticks in HTTPRoute match values
Weaknesses CWE-74
References
Metrics cvssV4_0

{'score': 6.1, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:N/SC:H/SI:N/SA:N'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-03-11T17:22:36.189Z

Reserved: 2026-03-04T16:26:02.898Z

Link: CVE-2026-29777

cve-icon Vulnrichment

Updated: 2026-03-11T17:22:25.497Z

cve-icon NVD

Status : Received

Published: 2026-03-11T16:16:40.830

Modified: 2026-03-11T16:16:40.830

Link: CVE-2026-29777

cve-icon Redhat

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cve-icon OpenCVE Enrichment

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Weaknesses