GHSA-6fvr-66p3-3qj4
OpenClaw: Hook-triggered CLI runs could receive owner MCP tool authority
Packages
Details
As written in the advisory (Markdown source, shown as plain text).
### Summary
OpenClaw 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.
This issue affects the boundary between hook-token automation and owner-only MCP tools. It does not affect deployments with hooks disabled.
### Affected configurations
This 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.
### Impact
A 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.
### Patched Versions
The first stable patched version is `2026.5.20`.
Fixed in the `2026.5.20` stable release.
### Mitigations
Upgrade to `[email protected]` or later. Keep hook tokens secret, restrict network access to hook endpoints, and disable hooks when they are not needed.
References
External links from the advisory. They lead to third-party sites.