Vulnerability Description
OpenClaw before 2026.5.20 contains a privilege escalation vulnerability where hook-triggered agent runs incorrectly receive owner-scoped MCP loopback authority instead of hook-appropriate scope. Attackers with a valid hook token can exploit the /hooks/agent endpoint to cause spawned CLI runtimes to access or invoke owner-only MCP tools, potentially executing privileged actions like persistent cron state modifications.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Openclaw | Openclaw | < 2026.5.20 |
Related Weaknesses (CWE)
References
- https://github.com/openclaw/openclaw/security/advisories/GHSA-6fvr-66p3-3qj4MitigationVendor Advisory
- https://www.vulncheck.com/advisories/openclaw-privilege-escalation-via-hook-trigThird Party Advisory
FAQ
What is CVE-2026-53814?
CVE-2026-53814 is a vulnerability with a CVSS score of 8.3 (HIGH). OpenClaw before 2026.5.20 contains a privilege escalation vulnerability where hook-triggered agent runs incorrectly receive owner-scoped MCP loopback authority instead of hook-appropriate scope. Attac...
How severe is CVE-2026-53814?
CVE-2026-53814 has been rated HIGH with a CVSS base score of 8.3/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-53814?
Check the references section above for vendor advisories and patch information. Affected products include: Openclaw Openclaw.