---
title: "CVE-2026-19592: OpenAI Codex CLI vulnerability"
url: https://erroneo.us/security/cve/CVE-2026-19592/
description: "CVE-2026-19592 (OpenAI Codex CLI): OpenAI Codex CLI for Windows, macOS, and Linux and Codex Desktop for Windows and macOS automatically collected Git…"
type: vulnerability-record
section: "Security Digest"
date_published: 2026-09-01
date_modified: 2026-10-21
publisher: erroneo.us
author: erroneo.us Security Desk
cve: "CVE-2026-19592"
kev: false
cvss: 7.3
epss: 0.00112
license: All rights reserved. Quote with attribution and a link.
---

# CVE-2026-19592: OpenAI Codex CLI vulnerability

**Signal:** Normal patch cycle. No exploitation signal; fix it in your next routine update if you are affected. (Computed from CISA KEV, EPSS and CVSS; not an editorial verdict.)

## Should you act?

- Not in CISA KEV , but CISA’s SSVC assessment records a public proof-of-concept, so attack code exists.
- EPSS 0.1% , percentile 1: FIRST’s model estimates a 0.1% chance of exploitation activity in the next 30 days, higher than 1% of all scored CVEs (low). EPSS is a probability, not a verdict.
- Needs local access needed. Lower urgency for most teams unless an attacker could already run code on the machine.
- Editorial verdict: Patch this week. GitSpawn: Repo Git Config Runs Code in AI Coding Agents — Update your coding agents this week and never point one at a repository that arrived as files until you have read its .git/config; ordinary clones are not affected, and no attacks have been reported.

## What it is

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.

## Affected products (CVE record)

- OpenAI Codex CLI: 0.102.0 <= 0.130.0
- OpenAI Codex Desktop: 260202.0859 <= 26.513.31313
- OpenAI Codex Desktop: 26.304.38 <= 26.513.40821
- OpenAI Codex Desktop (Microsoft Store package): 26.304.38.0 <= 26.513.4821.0

## Severity

- CISA-ADP CVSS 3.1: 7.3 `CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H`

## Exploitation

- CISA KEV: not listed (no confirmed in-the-wild exploitation known to CISA).
- CISA SSVC assessment: exploitation poc , automatable no , technical impact total .
- FIRST EPSS (model of 2026-10-21): 0.11% probability of exploitation activity in the next 30 days; percentile 1.

## Sources

- [CVE.org record CVE-2026-19592](https://www.cve.org/CVERecord?id=CVE-2026-19592)
- [NVD entry CVE-2026-19592](https://nvd.nist.gov/vuln/detail/CVE-2026-19592)
- [github.com](https://github.com/openai/codex/pull/22652)

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Source page: https://erroneo.us/security/cve/CVE-2026-19592/ · Security Digest: https://erroneo.us/security/ · More: https://erroneo.us/llms.txt