CVE-2026-33578
OpenClaw < 2026.3.28 - Sender Policy Allowlist Bypass via Policy Downgrade in Google Chat and Zalouser Extensions
CVSS Score
4.3
EPSS Score
0.0%
EPSS Percentile
1th
OpenClaw before 2026.3.28 contains a sender policy bypass vulnerability in the Google Chat and Zalouser extensions where route-level group allowlist policies silently downgrade to open policy. Attackers can exploit this policy resolution flaw to bypass sender restrictions and interact with bots despite configured allowlist restrictions.
| CWE | CWE-863 |
| Vendor | openclaw |
| Product | openclaw |
| Published | Mar 31, 2026 |
| Last Updated | Apr 2, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
None
Affected Versions
OpenClaw / OpenClaw
0 < 2026.3.28
References
github.com: https://github.com/openclaw/openclaw/security/advisories/GHSA-63mg-xp9j-jfcm github.com: https://github.com/openclaw/openclaw/commit/e64a881ae0fb8af18e451163f4c2d611d60cc8e4 vulncheck.com: https://www.vulncheck.com/advisories/openclaw-sender-policy-allowlist-bypass-via-policy-downgrade-in-google-chat-and-zalouser-extensions
Credits
🔍 AntAISecurityLab