GitHub Advisoryadvisory · npm
GHSA-63mg-xp9j-jfcm OpenClaw: Google Chat and Zalouser group sender allowlist bypass via policy downgrade
MEDIUM
Official page ↗
- Aliases
- CVE-2026-33578
- Ecosystem
- npm
- Packages
- openclaw
- Severity
- Moderate
- CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Weaknesses
- CWE-863
- Reviewed
- 2026-04-01
Affected packages
• npm openclaw: < 2026.3.28 → fixed in 2026.3.28
Description
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: `= 2026.3.28`
• Latest stable `2026.3.28` contains the fix.
Fix
Fixed by commit `e64a881ae0` (`Channels: preserve routed group policy`).
OpenClaw thanks @AntAISecurityLab for reporting.
Related
Alias · CVE (1)
- CVE-2026-33578 OpenClaw before 2026.3.28 contains a sender policy bypass vulnerability in the Google Chat and Zalouser extensions where route-level group… vulnerability
Weakness · CWE (1)
- CWE-863 Incorrect Authorization weakness
References
- https://github.com/openclaw/openclaw/security/advisories/GHSA-63mg-xp9j-jfcm web
- https://nvd.nist.gov/vuln/detail/CVE-2026-33578 advisory
- https://github.com/openclaw/openclaw/commit/e64a881ae0fb8af18e451163f4c2d611d60cc8e4 web
- https://github.com/openclaw/openclaw package
- https://www.vulncheck.com/advisories/openclaw-sender-policy-allowlist-bypass-via-policy-downgrade-in-google-chat-and-zalouser-extensions web