GCD AI RADAR
incidents/AIR-2026-1319

OpenAI Codex CLI and Desktop vulnerable to command safety bypass

Attack on AI2 Disclosed vulnerabilityInfrastructure vulnerability

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

Details

type
Attack on AI
An AI model, agent or AI-powered product was the thing exploited, abused or leaked.
categories
  • Infrastructure vulnerability
    CVEs and advisories in AI frameworks, inference servers, MCP servers, AI developer tools and hosting stacks.
owasp llm top 10
mitre atlas
no technique for these categories
Both rows are derived from the type and categories (OWASP 2025 edition, ATLAS release 2026.09), not classified per record. How
severity
2 · Disclosed vulnerability
CVE or vendor advisory, patched or patchable, no confirmed exploitation.
targets
OpenAI, Framework / tooling
products
OpenAI Codex CLI, Codex Desktop
incident date
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.
classifier confidence
0.95 · published at or above 0.80; see the methodology
tags
CVE-2026-19591 · command-injection
record
created 2026-10-18 10:04Z · updated 2026-10-18 10:04Z · json

Sources · 1

  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

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