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CVE-2025-54386

CRITICAL

9.8

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.

CVE Details

CVSS v3.1 Score9.8

SeverityCRITICAL

CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack VectorNETWORK

ComplexityLOW

Privileges RequiredNONE

User InteractionNONE

Published8/2/2025

Last Modified11/26/2025

Sourcenvd

Honeypot Sightings0

Affected Products

traefik:traefik

Weaknesses (CWE)

CWE-22CWE-30

References

https://github.com/traefik/plugin-service/pull/71(security-advisories@github.com)

https://github.com/traefik/plugin-service/pull/72(security-advisories@github.com)

https://github.com/traefik/traefik/commit/5ef853a0c53068f69a6c229a5815a0dc6e0a8800(security-advisories@github.com)

https://github.com/traefik/traefik/pull/11911(security-advisories@github.com)

https://github.com/traefik/traefik/releases/tag/v2.11.28(security-advisories@github.com)

https://github.com/traefik/traefik/security/advisories/GHSA-q6gg-9f92-r9wg(security-advisories@github.com)

IOC Correlations

No correlations recorded

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