p PatchFirst

CVE-2026-53814

CVE-2026-53814 · OpenClaw < 2026.5.20 - Privilege Escalation via Hook-Triggered CLI MCP Tool Authority

This page contains facts from public vulnerability sources. Check the original advisory before updating.

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 8.7 · High · EPSS 0.3% · Fix available

Published
Updated

Stack: node

Affected products and versions

  • openclaw

    Versions
    • ≥ 0, < 2026.5.20: Affected (semver)
    • 2026.5.20: Not affected (semver)

    Update to 2026.5.20

  • openclaw npm

    Affected ranges
    • SEMVER: < 2026.5.20

    Update to 2026.5.20

Original sources

Check your server →