CVE-2025-54794: Claude Code Path Restriction Bypass Vulnerability

# CVE-2025-54794: Claude Code Path Restriction Bypass Vulnerability

https://gcdradar.vercel.app/incidents/cve-2025-54794-claude-code-path-restriction-bypass-vulnerabi · AIR-2025-0319 · closed 2025-08-04

- Lane: Patch now
- Severity: 2 (Disclosed vulnerability)
- Fix status: Fix status unknown
- First reported: 2025-08-04
- AI role: Attack on AI
- Products: Claude Code
- CVE ids: CVE-2025-54794
- CVSS: 7.7

## Summary

A path validation flaw in Claude Code allows unauthorized file access outside the current working directory using prefix matching. Exploitation requires injecting untrusted content into the context window alongside a directory with a matching prefix.

## What to do

No action recorded; read the sources below and the vendor's advisory.

## Latest updates

- 2025-08-05: CVE-2025-54794: Claude Code is an agentic coding tool. (https://nvd.nist.gov/vuln/detail/CVE-2025-54794)
- 2025-08-04: CVE-2025-54794: Claude Code Research Preview has a Path Restriction Bypass which could allow unauthorized file access (https://github.com/advisories/GHSA-pmw4-pwvc-3hx2)

## Sources

- 2025-08-04 GitHub Advisory Database: CVE-2025-54794: Claude Code Research Preview has a Path Restriction Bypass which could allow unauthorized file access https://github.com/advisories/GHSA-pmw4-pwvc-3hx2
- 2025-08-05 NVD: CVE-2025-54794: Claude Code is an agentic coding tool. https://nvd.nist.gov/vuln/detail/CVE-2025-54794

Verify against the vendor's advisory before changing production. Data CC BY-SA 4.0, https://gcdradar.vercel.app.