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Vulnerability record · CVE-2025-61260 · published 14 April 2026

CVE-2025-61260: Code injection vulnerability

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.

9.8 CVSS 3.1 Critical EPSS 6.6% · top 6.4% CWE-94 · Code injection Awaiting Analysis
9.8CVSS 3.1 base score
6.6%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
2References
5 Jul 2026Last modified by NVD

Description

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.

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

References

LinkTags
https://research.checkpoint.com/2025/openai-codex-cli-command-injection-vulnerability/
https://research.checkpoint.com/2025/openai-codex-cli-command-injection-vulnerability/

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Source: NIST National Vulnerability Database (record CVE-2025-61260), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.