Unsafe symlink following in restricted workspace-write sandbox leads to RCE
Priority HIGH 73CWE-61Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA.
Summary
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.
Why it matters now
Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00904 60th percentileScored 2026-11-07
Fix Fixed @openai/codex: 0.12.0
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | @openai/codex | before 0.12.0 | 0.12.0 | Patch available | CNA |
- @openai/codex Vendor— Affected before 0.12.0 Fixed in 0.12.0 Patch available CNA
Remediation
- Fix · CNA @openai/codex Fixed in 0.12.0
Timeline
- 2026-10-02 Threatist record created from CVE-2025-55345
- 2026-10-03 Alias added: GHSA-698g-97rr-xgjf
References
Sources
- CVE-2025-55345 · CVE Program
- CVE-2025-55345 · NVD
- FIRST EPSS
- GHSA-698g-97rr-xgjf · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences