OpenAI Codex CLI for Windows, macOS, and Linux and Codex Desktop for Windows and macOS automatically collected Git repository metadata without disabling the repository-local core.fsmonitor setting. If a user opens or uses an attacker-prepared repository whose preserved .git/config sets core.fsmonitor to an attacker-controlled filesystem-monitor helper, Git can execute that helper while Codex collects repository metadata. The helper runs outside Codex's command sandbox and without a user-approval prompt, allowing attacker-controlled code to run with the user's privileges. The code can 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 source repository's local .git/config; exploitation requires a repository delivered or copied with that configuration intact.
References
History

Thu, 03 Sep 2026 16:45:00 +0000

Type Values Removed Values Added
First Time appeared Openai
Openai codex Cli
Openai codex Desktop
Openai codex Desktop (microsoft Store Package)
Vendors & Products Openai
Openai codex Cli
Openai codex Desktop
Openai codex Desktop (microsoft Store Package)

Thu, 03 Sep 2026 15:15:00 +0000

Type Values Removed Values Added
Title Codex CLI and Desktop execute attacker‑controlled Git fsmonitor helper with user privileges

Wed, 02 Sep 2026 16:30:00 +0000

Type Values Removed Values Added
Metrics cvssV3_1

{'score': 7.3, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Wed, 02 Sep 2026 00:45:00 +0000

Type Values Removed Values Added
Title Codex CLI and Desktop execute attacker‑controlled Git fsmonitor helper with user privileges

Tue, 01 Sep 2026 22:00:00 +0000

Type Values Removed Values Added
Description OpenAI Codex CLI for Windows, macOS, and Linux and Codex Desktop for Windows and macOS automatically collected Git repository metadata without disabling the repository-local core.fsmonitor setting. If a user opens or uses an attacker-prepared repository whose preserved .git/config sets core.fsmonitor to an attacker-controlled filesystem-monitor helper, Git can execute that helper while Codex collects repository metadata. The helper runs outside Codex's command sandbox and without a user-approval prompt, allowing attacker-controlled code to run with the user's privileges. The code can 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 source repository's local .git/config; exploitation requires a repository delivered or copied with that configuration intact.
Weaknesses CWE-15
References

cve-icon MITRE

Status: PUBLISHED

Assigner: OAI

Published:

Updated: 2026-09-02T15:36:20.843Z

Reserved: 2026-08-12T03:54:37.942Z

Link: CVE-2026-19592

cve-icon Vulnrichment

Updated: 2026-09-02T15:34:30.619Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-09-01T18:17:40.370

Modified: 2026-09-02T16:17:15.233

Link: CVE-2026-19592

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-09-03T16:27:39Z