Vulnerability Description
OpenAI Codex Desktop for Windows and macOS could execute attacker-controlled Git hooks because automated Git operations trusted the repository's local core.hooksPath setting. If a user opens an attacker-prepared repository whose preserved .git/config points core.hooksPath to an attacker-controlled directory, Codex can run a malicious hook while processing the repository. The hook executes outside Codex's command sandbox, without user approval, and with the user's privileges, allowing it to read, change, or delete the user's files and access other resources available to the user's account. An ordinary Git clone does not preserve the attacker-controlled repository-local configuration required for exploitation.
CVSS Score
HIGH
Related Weaknesses (CWE)
References
FAQ
What is CVE-2026-19590?
CVE-2026-19590 is a vulnerability with a CVSS score of 7.3 (HIGH). OpenAI Codex Desktop for Windows and macOS could execute attacker-controlled Git hooks because automated Git operations trusted the repository's local core.hooksPath setting. If a user opens an attack...
How severe is CVE-2026-19590?
CVE-2026-19590 has been rated HIGH with a CVSS base score of 7.3/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-19590?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.