Public proof of concept

CVE-2025-61260

A public proof of concept exists; no exploitation attested.

Published2026-04-14
WeaknessCWE-94

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

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.

Timeline

dates in UTC

2026-04-1415:16CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-10-23 18:48 UTC

Indicators tagged with this CVE, per day0 indicators over 7 days

Block these indicators

Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2025-61260?format=txt
CSV export: https://api.ismalicious.com/edl/cve/CVE-2025-61260?format=csv
TAXII collection of exploited CVEs
The EDL and CSV take an API key on the Pro plan.

Versions per branch

Neither OSV.dev nor the vendor advisories we read list affected versions for CVE-2025-61260 yet.

Full record on NVD

Fix

No fix published by the sources we read yet. NVD record

Detection

Nuclei template: none so far
Exploit-DB: no entry
Proof-of-concept repositories: none listed

Sources

NVDCVE recordread 2026-10-23
CISA-ADPSSVC decisionpoc2026-04-16
OpenCVESSVC decisionpoc—
CISA-ADPCVSS 3.19.82026-04-16
CISA-ADPweakness (CWE)CWE-942026-04-16
FIRST EPSSEPSS score6.6 %2026-10-22

Technical details

CVSS v3 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Published: 2026-04-14
Last Modified: 2026-07-05
NVD status: Awaiting Analysis

Frequently asked questions

What is CVE-2025-61260?

Is CVE-2025-61260 actively exploited?

A proof-of-concept exploit exists for CVE-2025-61260, but active exploitation has not been confirmed at this time.

What is the CVSS score for CVE-2025-61260?

CVE-2025-61260 has a CVSS v3 base score of 9.8 (CRITICAL severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

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