Vulnerability in Traefik
CVE-2026-29054
Traefik is an HTTP reverse proxy and load balancer. From version 2.11.9 to 2.11.37 and from version 3.1.3 to 3.6.8, there is a potential vulnerability in Traefik managing the Connection header with X-Forwarded headers. When Traefik process…
EPSS: 0.000 (2.9th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N.
Affected products
- Traefik — versions >= 2.11.9, < 2.11.38, >= 3.1.3, < 3.6.9
Weakness classification (CWE)
References
- https://github.com/traefik/traefik/security/advisories/GHSA-92mv-8f8w-wq52 (x_refsource_CONFIRM)
- https://github.com/traefik/traefik/releases/tag/v2.11.38 (x_refsource_MISC)
- https://github.com/traefik/traefik/releases/tag/v3.6.9 (x_refsource_MISC)
Frequently asked questions
- What is CVE-2026-29054?
- CVE-2026-29054 is a high-severity vulnerability in Traefik, classified under Improper Handling of Case Sensitivity. CVSS score: 7.5/10. Published 2026-03-05.
- How severe is CVE-2026-29054?
- High severity. CVSS v3 base score is 7.5 out of 10.