GHSA-q728-gf8j-w49r

Source

https://github.com/advisories/GHSA-q728-gf8j-w49r

Import Source

https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/02/GHSA-q728-gf8j-w49r/GHSA-q728-gf8j-w49r.json

JSON Data

https://api.osv.dev/v1/vulns/GHSA-q728-gf8j-w49r

Aliases

CVE-2026-24053

Published

2026-02-03T19:32:01Z

Modified

2026-02-04T22:42:25Z

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 has a Path Restriction Bypass via ZSH Clobber which Allows Arbitrary File Writes

Details

Due to a Bash command validation flaw in parsing ZSH clobber syntax, it was possible to bypass directory restrictions and write files outside the current working directory without user permission prompts. Exploiting this required the user to use ZSH and the ability to add untrusted content into a Claude Code context window.

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

Claude Code thanks https://hackerone.com/alexbernier for reporting this issue!

Database specific

{
    "cwe_ids":  [
        "CWE-22",
        "CWE-78"
    ],
    "github_reviewed":  true,
    "github_reviewed_at":  "2026-02-03T19:32:01Z",
    "nvd_published_at":  "2026-02-03T21:16:13Z",
    "severity":  "HIGH"
}

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

0 Unknown introduced version / All previous versions are affected

Fixed

2.0.74

Database specific

source

"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/02/GHSA-q728-gf8j-w49r/GHSA-q728-gf8j-w49r.json"