CVE Daily

CVE-2025-54386

Traefik is an HTTP reverse proxy and load balancer. In versions 2.11.27 and belo...

High CVSS 7.3

Overview

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.

CWE: CWE-22 Published: 2025-08-02T00:15:25.500
Risk analysis

This vulnerability is rated 🟠 HIGH.

  • CVSS: 7.3 (HIGH)
  • Detected tags: arb_write, dos, path (tag impact: VERY HIGH)

Recommended actions:

  • Rate limiting, resource quotas and circuit breakers.
  • Canonicalize path; block `..` traversal; use allowlists.
  • Fix privilege escalation urgently.
  • Enforce least-privilege and strengthen EDR detection.
  • Patch/upgrade immediately (remote code execution).

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