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CVE-2025-61260 — Vulnerability in @openai/codex — CVE Details

CRITICAL

OpenAI Codex CLI enables code execution through malicious MCP (Model Context Protocol) configuration files

Published April 14, 2026Updated April 16, 2026Source: osv

Summary

A vulnerability was identified in OpenAI Codex CLI v0.23.0 and before that enables code execution through malicious MCP (Model Context Protocol) configuration files. The attack is triggered when a user runs the codex command inside a malicious or compromised repository. Codex automatically loads project-local .env and .codex/config.toml files without requiring user confirmation, allowing attackers to embed arbitrary commands that execute immediately.

Advisory Timeline

  • First published April 14, 2026 (181 days ago).
  • Last revised April 16, 2026 — 2 days after initial publication.

Affected Packages (1)

Affects 1 ecosystem: npm (1).

PackageEcosystemAffectedFixed In
@openai/codex
npm
All versionsRange-based data available

Vulnerability Classification

Common Weakness Enumeration (CWE) identifiers for this vulnerability type.

CVSS Score Breakdown

What the CVSS (Common Vulnerability Scoring System) 9.8 score means for each attack dimension.

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References

Frequently Asked Questions

What is CVE-2025-61260?
OpenAI Codex CLI enables code execution through malicious MCP (Model Context Protocol) configuration files This vulnerability has been assigned a severity rating of CRITICAL (CVSS score: 9.8/10).
How do I check if my project is affected by CVE-2025-61260?
CVE-2025-61260 affects @openai/codex. Use GeekWala's free vulnerability scanner to check your dependencies against CVE-2025-61260 and 200,000+ other known vulnerabilities.

Severity & Exploitability

CVSS Score
9.8

Exploitation is straightforward and causes maximum impact. Patch immediately.

Also Known As

GHSA-xrxf-jgv3-qmrm

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