HighVulnerabilityLLM-specific

CVE-2026-19593: OpenAI Codex Desktop command execution through repository Git configuration

Source: NVD(opens in a new tab)
Identifier: CVE-2026-19593
Published: September 1, 2026
Record updated: October 9, 2026

Known exploitation: Not listed in the CISA Known Exploited Vulnerabilities catalog at the last check.
EPSS: 0.5%

Summary

OpenAI Codex Desktop for Windows and macOS automatically inspected Git metadata and working-tree status when a user opened a workspace. A repository carrying an attacker-controlled .git/config, with attr.tree and a configured clean or process filter, could make Git run an attacker-controlled program outside Codex's command sandbox, with the signed-in user's privileges and no trust prompt or command approval. Exploitation requires Git on PATH and the user opening the attacker-prepared repository with its local Git configuration intact.

Mitigation

The source does not state a fix yet. Check the original advisory for updates.

Details

Scores and exploitation

EPSS: 0.5%Estimated probability that this CVE is exploited in the next 30 days, from the FIRST Exploit Prediction Scoring System. Read on November 4, 2026.
Disclosure date: September 1, 2026

Weaknesses and techniques

Weakness (CWE): CWE-15

Affected

Vendors: OpenAI

Classification

Attack type: Other
Attack sophistication: Moderate
AI component targeted: Plugin
Impact: Confidentiality,
Integrity,
Availability
Labels: security

How this record was produced

Summaries, mitigations and labels on this page are generated automatically from the source. The linked source is authoritative. The source gives this advisory a description and no title, so the title above is a headline generated from the source text.

Original source: https://nvd.nist.gov/vuln/detail/CVE-2026-19593

First tracked: September 1, 2026 at 08:08 PM ET, from NVD/CVE Database

Classifier: claude-haiku-5-5, prompt v4

Classifier confidence: 85% (self-assessed)

Summary

Mitigation

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