gcdRadar
archive/Patch now/AIR-2026-1319
closedclosed 1 Sep 2026Patch now2 Disclosed vulnerabilityAI

OpenAI Codex CLI and Desktop vulnerable to command safety bypass

OpenAI Codex CLI, Codex Desktop

OpenAI Codex CLI and Desktop misclassified certain PowerShell commands due to stop-parsing token interpretation differences. An attacker could use a crafted repository to run file-writing Git commands without user approval.

disclosed CVENo confirmed exploitation, so this record is tracked as a disclosed vulnerability and not counted as an incident. It moves into the counts if CISA or the vendor confirms exploitation. Why

CVSS
8.8
EPSS
0.01 · top 53% · 2026-11-13
EPSS scores by FIRST
fix status
Fix status unknown
first report
1 Sep 2026
last update
1 Sep 2026
CVE ids
CVE-2026-19591other records

Timeline · 1

  1. 1 Sep 2026CVE-2026-19591: OpenAI Codex CLI for Windows, macOS, and Linux and Codex Desktop for Windows and macOS misclassified certain PowerShell commands…

Sources · 1

Advisories and databases

  1. 2026-09-01
    CVE-2026-19591: OpenAI Codex CLI for Windows, macOS, and Linux and Codex Desktop for Windows and macOS misclassified certain PowerShell commands…
    NVD · nvd.nist.gov/vuln/detail/CVE-2026-19591

Titles and links belong to their publishers. The summary above is written by gcdRadar in its own words; data is CC BY-SA 4.0.

Classification

lane
Patch now
AI role
Attack on AI
categories
Infrastructure vulnerability
severity
2 · Disclosed vulnerability
fix status
Fix status unknown
targets
OpenAI, Framework / tooling
owasp llm top 10
LLM03:2025 Supply Chain
mitre atlas
no technique for these categories
tags
command-injection
dates
happened 1 Sep 2026 · first reported 1 Sep 2026
origin
NVD
Vulnerability record from NVD / the GitHub Advisory Database. This product uses the NVD API but is not endorsed or certified by the NVD.
record
confidence 0.95 · created 2026-10-18 10:04Z · updated 2026-10-18 10:04Z

Lane, AI role, categories and severity come from the classifier; the OWASP and ATLAS rows are derived from the categories. How these are assigned

Copy a brief

This record as a short Markdown brief, for a ticket, a chat or a coding agent.

the brief as text
# OpenAI Codex CLI and Desktop vulnerable to command safety bypass

https://gcdradar.vercel.app/incidents/openai-codex-cli-and-desktop-vulnerable-to-command-safety-by · AIR-2026-1319 · closed 2026-09-01

- Lane: Patch now
- Severity: 2 (Disclosed vulnerability)
- Fix status: Fix status unknown
- First reported: 2026-09-01
- AI role: Attack on AI
- Products: OpenAI Codex CLI, Codex Desktop
- CVE ids: CVE-2026-19591
- CVSS: 8.8

## Summary

OpenAI Codex CLI and Desktop misclassified certain PowerShell commands due to stop-parsing token interpretation differences. An attacker could use a crafted repository to run file-writing Git commands without user approval.

## What to do

No action recorded; read the sources below and the vendor's advisory.

## Latest updates

- 2026-09-01: CVE-2026-19591: OpenAI Codex CLI for Windows, macOS, and Linux and Codex Desktop for Windows and macOS misclassified certain PowerShell commands… (https://nvd.nist.gov/vuln/detail/CVE-2026-19591)

## Sources

- 2026-09-01 NVD: CVE-2026-19591: OpenAI Codex CLI for Windows, macOS, and Linux and Codex Desktop for Windows and macOS misclassified certain PowerShell commands… https://nvd.nist.gov/vuln/detail/CVE-2026-19591

Verify against the vendor's advisory before changing production. Data CC BY-SA 4.0, https://gcdradar.vercel.app.

Related

  1. closed7.3
    OpenAI Codex OpenAI Codex CLI and Desktop vulnerable to arbitrary code execution via Git metadata

    Patch now · Disclosed · since 1 Sep 2026 · CVE-2026-19592

    AI
  2. closed9.8
    OpenAI Codex CVE-2025-61260: OpenAI Codex CLI enables code execution via malicious MCP files

    Patch now · Disclosed · since 14 Apr 2026 · CVE-2025-61260

    AI
  3. closed4.1
    OpenAI Codex Auto-Approval Flaw in OpenAI Codex CLI

    Patch now · Disclosed · since 25 Jul 2025 · CVE-2025-54558

    AI
  4. closed6.3
    Flowise CVE-2026-73603: Chatflow visibility bypass in Flowise TTS endpoint

    Patch now · Disclosed · since 13 Aug 2026 · CVE-2026-73603

    AI
  5. closed9.9
    Flowise CVE-2026-67622: Flowise IDOR vulnerability in OpenAI Assistants integration

    Patch now · Disclosed · since 6 Aug 2026 · CVE-2026-67622

    AI
  6. closed7.1
    Flowise CVE-2026-70472: Flowise cross-workspace credential IDOR vulnerability

    Patch now · Disclosed · since 4 Aug 2026 · CVE-2026-70472

    AI