CVE-2026-40068: Claude Code Trust Dialog Bypass via Git Worktree

# CVE-2026-40068: Claude Code Trust Dialog Bypass via Git Worktree

https://gcdradar.vercel.app/incidents/cve-2026-40068-claude-code-trust-dialog-bypass-via-git-workt · AIR-2026-0598 · closed 2026-04-24

- Lane: Patch now
- Severity: 2 (Disclosed vulnerability)
- Fix status: Fix status unknown
- First reported: 2026-04-24
- AI role: Attack on AI
- Products: Claude Code
- CVE ids: CVE-2026-40068
- CVSS: 7.7

## Summary

Claude Code failed to validate git worktree commondir files, allowing an attacker to spoof trusted folders and bypass security warnings. Victims cloning a crafted repository would execute malicious settings hooks.

## What to do

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

## Latest updates

- 2026-05-05: CVE-2026-40068: In versions 2.1.63 through 2.1.83 of Claude Code, the folder trust determination logic used the git worktree commondir file… (https://nvd.nist.gov/vuln/detail/CVE-2026-40068)
- 2026-04-24: CVE-2026-40068: Claude Code: Trust Dialog Bypass via Git Worktree Spoofing Allows Arbitrary Code Execution (https://github.com/advisories/GHSA-q5hj-mxqh-vv77)

## Sources

- 2026-04-24 GitHub Advisory Database: CVE-2026-40068: Claude Code: Trust Dialog Bypass via Git Worktree Spoofing Allows Arbitrary Code Execution https://github.com/advisories/GHSA-q5hj-mxqh-vv77
- 2026-05-05 NVD: CVE-2026-40068: In versions 2.1.63 through 2.1.83 of Claude Code, the folder trust determination logic used the git worktree commondir file… https://nvd.nist.gov/vuln/detail/CVE-2026-40068

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