Summary
Claude Code Research Preview has a Path Restriction Bypass which could allow unauthorized file access
Due to a path validation flaw using prefix matching instead of canonical path comparison, it was 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.
Users on standard Claude Code auto-update received this fix automatically after release. Current users of Claude Code are unaffected, as versions prior to 1.0.24 are deprecated and have been forced to update.
Thank you to Elad Beber (Cymulate) for reporting this issue!
Impact
Input manipulates file paths to reach files outside the intended directory, such as configuration or credential files. Typical impact: unauthorized file read or write outside the intended directory.
Affected versions
Security releases
Kodem intelligence
Severity tells you how bad this could be in the worst case. It does not tell you whether you are exposed. Exploitability and impact are functions of runtime truth: whether the vulnerable code is present, reachable, and actually executes in your application. A vulnerable package can sit in your dependency tree and never run.
Kodem, an Intelligent Application Security platform, uses runtime intelligence to reveal which vulnerabilities actually execute in production, so teams prioritize the ones that genuinely matter. Kodem's runtime-powered SCA identifies whether this CVE is reachable in your applications.
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Frequently Asked Questions
- What is CVE-2025-54794? CVE-2025-54794 is a high-severity path traversal vulnerability in @anthropic-ai/claude-code (npm), affecting versions < 0.2.111. It is fixed in 0.2.111. Input manipulates file paths to reach files outside the intended directory, such as configuration or credential files.
- Which versions of @anthropic-ai/claude-code are affected by CVE-2025-54794? @anthropic-ai/claude-code (npm) versions < 0.2.111 is affected.
- Is there a fix for CVE-2025-54794? Yes. CVE-2025-54794 is fixed in 0.2.111. Upgrade to this version or later.
- Is CVE-2025-54794 exploitable, and should I be worried? Whether CVE-2025-54794 is exploitable in your environment depends on whether the vulnerable code is present and reachable. A CVSS score is a worst-case rating; it does not account for your specific deployment, configuration, or usage patterns. Kodem, an Intelligent Application Security platform, uses runtime intelligence to show which vulnerabilities actually execute in production, so you can focus on the ones that represent real risk. Get a demo
- What actually determines whether CVE-2025-54794 is exploitable, and how bad it is? Exploitability and impact are not fixed properties of a CVE. They depend on runtime truth: whether the vulnerable code is present, reachable, and actually executes in your application. A high CVSS score on a dependency that never runs is not the same as real risk. Kodem, an Intelligent Application Security platform, uses runtime intelligence to reveal which vulnerabilities actually execute in production, so teams prioritize the ones that genuinely matter.
- How do I fix CVE-2025-54794? Upgrade
@anthropic-ai/claude-codeto 0.2.111 or later.