{"id":"CVE-2026-53814","aliases":["GHSA-6fvr-66p3-3qj4"],"url":"https://o3.security/vulnerability/CVE-2026-53814","summary":"OpenClaw < 2026.5.20 - Privilege Escalation via Hook-Triggered CLI MCP Tool Authority","details":"### Summary\n\nOpenClaw hook ingress can start automated agent runs using a configured hook token. In affected releases, a hook-triggered run could select a bundled CLI backend that received owner-scoped MCP loopback authority instead of a scope appropriate for hook ingress.\n\nThis issue affects the boundary between hook-token automation and owner-only MCP tools. It does not affect deployments with hooks disabled.\n\n### Affected configurations\n\nThis affects deployments where hooks are enabled, `/hooks/agent` is reachable with a valid hook token, and a bundled CLI backend can be selected for the hook-triggered run.\n\n### Impact\n\nA caller with the hook token could cause the spawned CLI runtime to see or call MCP tools that should have been owner-only. The practical impact depends on which MCP tools are available; the reported proof used persistent cron state as a representative owner-only action.\n\n### Patched Versions\n\nThe first stable patched version is `2026.5.20`.\n\nFixed in the `2026.5.20` stable release.\n\n### Mitigations\n\nUpgrade to `openclaw@2026.5.20` or later. Keep hook tokens secret, restrict network access to hook endpoints, and disable hooks when they are not needed.","published":"2026-06-11T20:08:31.474Z","modified":"2026-08-12T03:51:35.913479532Z","cvss":null,"epss":{"score":0.00281,"percentile":0.205,"asOf":"2026-09-13"},"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"npm","name":"openclaw","fixedVersion":"2026.5.20"}],"fix":null,"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/53xxx/CVE-2026-53814.json"},{"type":"ADVISORY","url":"https://github.com/openclaw/openclaw/security/advisories/GHSA-6fvr-66p3-3qj4"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-53814"},{"type":"ADVISORY","url":"https://www.vulncheck.com/advisories/openclaw-privilege-escalation-via-hook-triggered-cli-mcp-tool-authority"},{"type":"PACKAGE","url":"https://github.com/openclaw/openclaw"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-12T03:51:35.913479532Z"}}