What is CVE-2025-55345?

CVE-2025-55345 is a high-severity vulnerability, classified under UNIX Symbolic Link (Symlink) Following. CVSS score: 8.8/10. Published 2025-08-13.

How severe is CVE-2025-55345?

High severity. CVSS v3 base score is 8.8 out of 10.

CVE-2025-55345

CVE-2025-55345

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.

Published 2025-08-13 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.008 (56.4th percentile), scored 2026-10-06.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 56th percentile — 56.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.008 · newest: 0.008 · change: 0.000

Weakness classification (CWE)

CWE-61 — UNIX Symbolic Link (Symlink) Following

References

research.jfrog.com/vulnerabilities/codex-cli-symlink-arbitrary-file-overwrite-j… (third-party-advisory)
github.com/openai/codex/pull/1705 (patch)

Frequently asked questions

What is CVE-2025-55345?: CVE-2025-55345 is a high-severity vulnerability, classified under UNIX Symbolic Link (Symlink) Following. CVSS score: 8.8/10. Published 2025-08-13.
How severe is CVE-2025-55345?: High severity. CVSS v3 base score is 8.8 out of 10.