| Component | OpenClaw |
| Severity | high (CVSS 8.3) |
| CVSS vector | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L |
| Published (NVD) | 2026-06-11 |
| Last modified | 2026-06-17 |
| Affected versions | openclaw < 2026.5.20 |
| Fixed in | 2026.5.20 |
| Weakness | CWE-266 |
| CISA KEV | not listed |
NVD 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.
What to do
- Upgrade OpenClaw to
2026.5.20or later. - Do not expose the component's API or UI to the internet without authentication in front of it.
Sources
- NVD: CVE-2026-53814
- https://github.com/openclaw/openclaw/security/advisories/GHSA-6fvr-66p3-3qj4
- https://www.vulncheck.com/advisories/openclaw-privilege-escalation-via-hook-triggered-cli-mcp-tool-authority
Read more
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