OpenClaw: Google Chat app-url webhook auth accepted non-deployment add-on principals

Summary

Google Chat app-url webhook verification accepted add-on principals outside the intended deployment binding.

Affected Packages / Versions

• Package: openclaw (npm)
• Affected: < 2026.3.22
• Fixed: >= 2026.3.22
• Latest released tag checked: v2026.3.23-2 (630f1479c44f78484dfa21bb407cbe6f171dac87)
• Latest published npm version checked: 2026.3.23-2

Fix Commit(s)

• a47722de7e3c9cbda8d5512747ca7e3bb8f6ee66

Release Status

The fix shipped in v2026.3.22 and remains present in v2026.3.23 and v2026.3.23-2.

Code-Level Confirmation

• extensions/googlechat/src/auth.ts now requires expectedAddOnPrincipal matching for add-on principals and rejects unexpected issuers.
• extensions/googlechat/src/monitor-webhook.ts passes the configured appPrincipal into auth verification for the shipped webhook path.

OpenClaw thanks @ijxpwastaken for reporting.