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CVE

CVE-2026-33578

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

CVE-2026-33578

OpenClaw: Google Chat and Zalouser group sender allowlist bypass via policy downgrade

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).

Package Versions Affected

Package Version
patch Availability
No items found.

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CVSS Version

Severity
Base Score
CVSS Version
Score Vector
C
H
U
5.3
-
4.0
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
C
H
U
0
-
3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
C
H
U
-

Related Resources

No items found.

References

https://github.com/openclaw/openclaw/security/advisories/GHSA-63mg-xp9j-jfcm, https://nvd.nist.gov/vuln/detail/CVE-2026-33578, https://github.com/openclaw/openclaw/commit/e64a881ae0fb8af18e451163f4c2d611d60cc8e4, https://github.com/openclaw/openclaw, https://www.vulncheck.com/advisories/openclaw-sender-policy-allowlist-bypass-via-policy-downgrade-in-google-chat-and-zalouser-extensions

Severity

9.8

CVSS Score
0
10

Basic Information

Ecosystem
Base CVSS
9.8
EPSS Probability
0%
EPSS Percentile
0%
Introduced Version
0
Fix Available
2026.3.28

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