CVE-2025-61260 | BDVDB-2026-326739 Detail

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.

Impact#

Per CVSS v3.1: confidentiality impact high, integrity impact high, availability impact high. Attack vector: network.

Weaknesses#

CWE-94 Improper Control of Generation of Code ('Code Injection')

References#

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

Exploit#

No public exploit known

History#

Version 12026-04-14Record published in the CVE List.
Version 22026-07-05Most recent update recorded in the CVE List.

Published

Published: 2026-04-14
Last modified: 2026-07-05

Vendor information

Vendor: Not stated
Product: Not stated

Score

9.8 Critical

EPSS

6.6%, Low

Estimated chance of exploitation in the next 30 days. EPSS percentile: 93.9.

KEV

Not listed in the CISA Known Exploited Vulnerabilities catalog.

Impact

Code Injection

Action

No specific action is recorded in the source data. Check the references for vendor guidance.

Affected Systems

No version data in the source record.

Scoring System

CVSS v4.0

Not available

CVSS v3.1

9.8 Critical

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

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

CVSS v3.0

Not available

CVSS v2

Not available

Source: CVE List v5 (record); CISA KEV (kev, action); FIRST EPSS (epss).