GHSA-66q4-vfjg-2qhh

Source

https://github.com/advisories/GHSA-66q4-vfjg-2qhh

Import Source

https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/02/GHSA-66q4-vfjg-2qhh/GHSA-66q4-vfjg-2qhh.json

JSON Data

https://api.osv.dev/v1/vulns/GHSA-66q4-vfjg-2qhh

Aliases

CVE-2026-25722

Published

2026-02-06T19:02:41Z

Modified

2026-02-06T19:56:44.198671Z

Severity

7.7 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N CVSS Calculator

Summary

Claude Code Vulnerable to Command Injection via Directory Change Bypasses Write Protection

Details

Claude Code failed to properly validate directory changes when combined with write operations to protected folders. By using the cd command to navigate into sensitive directories like .claude, it was possible to bypass write protection and create or modify files without user confirmation. Reliably exploiting this required the ability to add untrusted content into a Claude Code context window.

Users on standard Claude Code auto-update received this fix automatically. Users performing manual updates are advised to update to the latest version.

About Claude Code thanks hackerone.com/nil221 for reporting this issue!

Database specific

{
    "nvd_published_at": "2026-02-06T18:15:59Z",
    "github_reviewed_at": "2026-02-06T19:02:41Z",
    "severity": "HIGH",
    "cwe_ids": [
        "CWE-20",
        "CWE-78"
    ],
    "github_reviewed": true
}

References

Affected packages

npm / @anthropic-ai/claude-code

Package

Name: @anthropic-ai/claude-code; View open source insights on deps.dev
Purl: pkg:npm/%40anthropic-ai/claude-code

Affected ranges

Type: SEMVER
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

2.0.57

Database specific

source

"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/02/GHSA-66q4-vfjg-2qhh/GHSA-66q4-vfjg-2qhh.json"