CVE-2026-24053: Claude Code path restriction bypass via ZSH clobber

# CVE-2026-24053: Claude Code path restriction bypass via ZSH clobber

https://gcdradar.vercel.app/incidents/cve-2026-24053-claude-code-path-restriction-bypass-via-zsh-c · AIR-2026-0448 · closed 2026-02-03

- Lane: Patch now
- Severity: 2 (Disclosed vulnerability)
- Fix status: Fix status unknown
- First reported: 2026-02-03
- AI role: Attack on AI
- Products: Claude Code
- CVE ids: CVE-2026-24053
- CVSS: 7.7

## Summary

A Bash command validation flaw in parsing ZSH clobber syntax permitted directory restriction bypasses and arbitrary file writes. Exploitation required injecting untrusted content into the context window and using ZSH.

## What to do

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

## Latest updates

- 2026-02-03: CVE-2026-24053: Claude Code is an agentic coding tool. (https://nvd.nist.gov/vuln/detail/CVE-2026-24053)
- 2026-02-03: CVE-2026-24053: Claude Code has a Path Restriction Bypass via ZSH Clobber which Allows Arbitrary File Writes (https://github.com/advisories/GHSA-q728-gf8j-w49r)

## Sources

- 2026-02-03 GitHub Advisory Database: CVE-2026-24053: Claude Code has a Path Restriction Bypass via ZSH Clobber which Allows Arbitrary File Writes https://github.com/advisories/GHSA-q728-gf8j-w49r
- 2026-02-03 NVD: CVE-2026-24053: Claude Code is an agentic coding tool. https://nvd.nist.gov/vuln/detail/CVE-2026-24053

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