Using Codex CLI in workspace-write mode inside a malicious context (repo, directory, etc) could lead to arbitrary file overwrite and potentially remote code execution due to symlinks being followed outside the allowed current working directory.
https://research.jfrog.com/vulnerabilities/codex-cli-symlink-arbitrary-file-overwrite-jfsa-2025-001378631/
https://github.com/openai/codex/pull/1705
Source: Mitre, NVD
Published: 2025-08-13
Updated: 2026-04-15
Base Score: 10
Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C
Severity: Critical
Base Score: 8.8
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Severity: High
EPSS: 0.00139