---
id: CVE-2026-19593
title: >-
  OpenAI Codex Desktop for Windows and macOS automatically inspected Git
  metadata and working-tree status when a user opened a workspace
summary: >-
  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 …
severity: critical
cvss: 9.8
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'
cwe:
  - CWE-15
vendor: OpenAI
product: Codex Desktop
affected:
  - codex_desktop >= 260202.0859 <= 26.513.31313
  - codex_desktop >= 26.304.38 <= 26.513.40821
  - codex_desktop_microsoft_store_package >= 26.304.38.0 <= 26.513.4821.0
published: '2026-09-01'
updated: '2026-10-15'
sourceUpdated: '2026-10-15T17:17:21.530'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-19593'
references:
  - url: 'https://www.zerodayinitiative.com/advisories/ZDI-26-651/'
    label: 8f4f43ab-ba69-4d92-aa1d-d772184d6fb7
tags:
  - nvd
  - cve.org
ssvc:
  exploitation: none
  automatable: 'yes'
  technicalImpact: total
  timestamp: '2026-09-02T17:19:21.924083Z'
epss: 0.00366
epssPercentile: 0.28777
zeroDay: true
ingestedAt: '2026-10-15T17:18:20.025Z'
---

## Overview

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.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.