# CVE-2026-19593

## Summary

- **CVE ID:** CVE-2026-19593
- **Severity:** CRITICAL
- **CVSS Score:** 9.8 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)
- **CWE:** CWE-15
- **Published:** Sep 1, 2026
- **Last Modified:** Sep 2, 2026

## Description

OpenAI Codex Desktop for Windows and macOS automatically inspected Git metadata and working-tree status when a user opened a workspace. If the workspace contains a repository with preserved attacker-controlled .git/config, the attr.tree setting and a configured clean or process filter can cause Git to run an attacker-controlled program. The program runs outside Codex's command sandbox with the signed-in user's privileges, without a workspace-trust prompt, command approval, or interaction with a model. The attacker can read, modify, or delete files and access credentials available to that user. Exploitation requires Git to be available on PATH and the user to open the attacker-prepared repository with its local Git configuration intact. An ordinary Git clone does not copy the source repository's .git/config and is not sufficient by itself.

## Affected Products

- OpenAI — Codex Desktop (260202.0859)
- OpenAI — Codex Desktop (26.519.22136)
- OpenAI — Codex Desktop (26.304.38)
- OpenAI — Codex Desktop (26.519.21041)
- OpenAI — Codex Desktop (Microsoft Store package) (26.304.38.0)
- OpenAI — Codex Desktop (Microsoft Store package) (26.519.2081.0)

## References

- [CNA](https://openai.com/codex)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.29%
- **EPSS Percentile:** 21.4

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-11._