Vulnerability Description
Traefik is an HTTP reverse proxy and load balancer. In versions 2.11.27 and below, 3.0.0 through 3.4.4 and 3.5.0-rc1, a path traversal vulnerability was discovered in WASM Traefik’s plugin installation mechanism. By supplying a maliciously crafted ZIP archive containing file paths with ../ sequences, an attacker can overwrite arbitrary files on the system outside of the intended plugin directory. This can lead to remote code execution (RCE), privilege escalation, persistence, or denial of service. This is fixed in versions 2.11.28, 3.4.5 and 3.5.0.
CVSS Score
CRITICAL
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Traefik | Traefik | < 2.11.7 |
Related Weaknesses (CWE)
References
- https://github.com/traefik/plugin-service/pull/71Patch
- https://github.com/traefik/plugin-service/pull/72Patch
- https://github.com/traefik/traefik/commit/5ef853a0c53068f69a6c229a5815a0dc6e0a88Patch
- https://github.com/traefik/traefik/pull/11911Patch
- https://github.com/traefik/traefik/releases/tag/v2.11.28Release Notes
- https://github.com/traefik/traefik/security/advisories/GHSA-q6gg-9f92-r9wgVendor Advisory
FAQ
What is CVE-2025-54386?
CVE-2025-54386 is a vulnerability with a CVSS score of 9.8 (CRITICAL). Traefik is an HTTP reverse proxy and load balancer. In versions 2.11.27 and below, 3.0.0 through 3.4.4 and 3.5.0-rc1, a path traversal vulnerability was discovered in WASM Traefik’s plugin installatio...
How severe is CVE-2025-54386?
CVE-2025-54386 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.
Is there a patch for CVE-2025-54386?
Check the references section above for vendor advisories and patch information. Affected products include: Traefik Traefik.