CVE-2025-54794: anthropic claude_code Path Traversal

Vulnerability summary

CVE-2025-54794 is a critical (CVSS 9.1) Path Traversal vulnerability in anthropic claude_code. EPSS estimates a 1.36% chance of exploitation in the next 30 days, higher than 71.4% of scored vulnerabilities.

Timeline

1. 05-08-2025
   PublishedVulnerability first disclosed.
2. 05-08-2025
   Last modifiedVulnerability information updated.

Description

Claude Code is an agentic coding tool. In versions below 0.2.111, a path validation flaw using prefix matching instead of canonical path comparison, makes it possible to bypass directory restrictions and access files outside the CWD. Successful exploitation depends on the presence of (or ability to create) a directory with the same prefix as the CWD and the ability to add untrusted content into a Claude Code context window. This is fixed in version 0.2.111.

• CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.