AI agent vulnerability · OpenClaw

CVE-2026-33578: OpenClaw: Google Chat and Zalouser group sender allowlist bypass via policy downgrade

mediumCVSS 4.0 5.3 · 3.1 9.8GHSA-63mg-xp9j-jfcm

Summary When only a route-level group allowlist was configured, sender policy resolution silently downgraded from allowlist to open instead of preserving the configured group policy. Impact Any member of an allowlisted Google Chat space or Zalouser group could interact with the bot even when the operator intended sender-level restrictions.

Published Apr 1, 2026 · Updated Apr 6, 2026

Affected packages

openclaw

Ecosystem: npm
Affected: <= 2026.3.24
Fixed in: 2026.3.28
Check: npm ls openclaw

Advisory details

From the GitHub Advisory Database (CC BY 4.0).

Summary

When only a route-level group allowlist was configured, sender policy resolution silently downgraded from allowlist to open instead of preserving the configured group policy.

Impact

Any member of an allowlisted Google Chat space or Zalouser group could interact with the bot even when the operator intended sender-level restrictions.

Affected Component

extensions/googlechat/src/monitor-access.ts, extensions/zalouser/src/monitor.ts

Fixed Versions

Affected: <= 2026.3.24
Patched: >= 2026.3.28
Latest stable 2026.3.28 contains the fix.

Fix

Fixed by commit e64a881ae0 (Channels: preserve routed group policy).

OpenClaw thanks @AntAISecurityLab for reporting.

Credited to AntAISecurityLab.

References

How this page is made: the data panel comes from the GitHub Advisory Database, CISA’s KEV catalog, the NVD and FIRST EPSS, and updates twice a day. No analysis has been written for this entry yet. Methodology

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