Medium 6.1Published Mar 11, 2026

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

Updated under an hour ago (Oct 28, 2026, 1:23 AM ET)

Does this affect you?

It affects traefik. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

Do this next

Start free and add your stack

Free account, 1 product

Every CVE for traefik

Exploited in the last 30 days

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 (v4.0, CNA)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
Weakness (CWE): CWE-74
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: GitHub_M
NVD analysis: Analyzed
Record last updated: Mar 11, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

traefik traefik traefik:traefik (from the name)	before 3.6.10	CNA record
traefik traefik traefik:traefik	before 3.6.10	NVD

References

References

https://github.com/traefik/traefik/security/advisories/GHSA-8q2w-wr49-whqj	x-refsource-confirm, vendor-advisory
https://github.com/traefik/traefik/releases/tag/v3.6.10	x-refsource-misc, release-notes

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.