CVE-2025-54386: high-severity vulnerability in traefik
Traefik's Client Plugin is Vulnerable to Path Traversal, Arbitrary File Overwrites and Remote Code Execution
Published · Updated
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21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 7.3epss 1.4%
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:4.0/AV:N/AC:H/AT:P/PR:H/UI:P/VC:H/VI:H/VA:H/SC:L/SI:L/SA:L
Affected products
traefik · traefikRelated CVEs — traefik
In the same product, most dangerous first.
CVE-2026-85595CRITICALTraefik before v2.11.55 and v3.0.0 through v3.7.10 Authentication Bypass via digestAuthEPSS 2.5%CVE-2022-23632HIGHTraefik skips the router TLS configuration when the host header is an FQDNEPSS 1.7%CVE-2024-45410CRITICALHTTP client can remove the X-Forwarded headers in TraefikEPSS 1.5%CVE-2022-39271HIGHTraefik HTTP/2 connections management could cause a denial of serviceEPSS 1.4%CVE-2023-47633HIGHUncontrolled Resource Consumption in TraefikEPSS 1.3%CVE-2021-32813MEDIUMDrop Headers via Malicious Connection HeaderEPSS 1.1%
References
https://github.com/traefik/plugin-service/pull/71https://github.com/traefik/plugin-service/pull/72https://github.com/traefik/traefik/commit/5ef853a0c53068f69a6c229a5815a0dc6e0a8800https://github.com/traefik/traefik/pull/11911https://github.com/traefik/traefik/releases/tag/v2.11.28https://github.com/traefik/traefik/security/advisories/GHSA-q6gg-9f92-r9wg