CVE-2026-19592 (GCVE-0-2026-19592)

Vulnerability from cvelistv5 – Published: 2026-09-01 17:14 – Updated: 2026-09-02 15:36
VLAI
Summary
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.
Severity
7.3 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
SSVC
Exploitation: poc Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-02 15:34 UTC
CWE
  • CWE-15 - External Control of System or Configuration Setting
Assigner
OAI CNA under the mitre root
CNA scorecard – unranked: 7 records in the last 180 days, 10 needed details
References
Impacted products
Vendor Product Version CPE status
OpenAI Codex CLI Affected: 0.102.0 , ≤ 0.130.0 (semver)
Unaffected: 0.131.0
guessed Create a notification for this product.
OpenAI Codex Desktop Affected: 260202.0859 , ≤ 26.513.31313 (custom)
Unaffected: 26.519.22136
guessed Create a notification for this product.
OpenAI Codex Desktop Affected: 26.304.38 , ≤ 26.513.40821 (custom)
Unaffected: 26.519.21041
guessed Create a notification for this product.
OpenAI Codex Desktop (Microsoft Store package) Affected: 26.304.38.0 , ≤ 26.513.4821.0 (custom)
Unaffected: 26.519.2081.0
guessed Create a notification for this product.
Credits
System Software and Security Lab, Fudan University maitai (@MaitaiThe) of Doyensec (@Doyensec), reporting through the Zero Day Initiative.
Show details on NVD website
To clipboard 

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