CVE-2025-61260Public exploitNetwork attack vector

Code execution via project-local MCP configuration

Published Apr 14, 2026 · Updated Apr 14, 2026

Command injection in OpenAI Codex CLI before 0.23.0 allows context-dependent attackers to execute code via a malicious repository. A repository .env redirects CODEX_HOME to .codex, whose config.toml MCP entry is parsed and launched without approval or content validation. A developer must run codex inside the repository; the configured command then executes with that developer's operating-system privileges.

CVSS severity9.8
Critical
EPSS probability6.58%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Command injection in OpenAI Codex CLI before 0.23.0 allows context-dependent attackers to execute code via a malicious repository. A repository .env redirects CODEX_HOME to .codex, whose config.toml MCP entry is parsed and launched without approval or content validation. A developer must run codex inside the repository; the configured command then executes with that developer's operating-system privileges.

The record

CVE
CVE-2025-61260
Published
Apr 14, 2026
Updated
Apr 14, 2026
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-94, T1204.002
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 14, 2026CVE publishedPublication date reported by the CVE source.
  2. Apr 14, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

9.8CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-94Improper Control of Generation of Code ('Code Injection')
T1204.002Malicious File

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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