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.
Attack Parameters
Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Attack Requirements
None
No additional conditions
Privileges Required
Low
Basic privileges needed
User Interaction
None
No user interaction needed
Impact Assessment
Confidentiality
Low
Partial data leak
Integrity
None
No data modification
Availability
None
No disruption
CVSS Vector v4.0
Weakness Type (CWE)
Vulnerable Products 1
| Configuration | From (including) | Up to (excluding) |
|---|---|---|
|
Openclaw Openclaw
cpe:2.3:a:openclaw:openclaw:*:*:*:*:*:node.js:*:*
|
— |
2026.3.28
|
References 3
https://github.com/openclaw/openclaw/commit/e64a881ae0fb8af18e451163f4c2d611d60…
disclosure@vulncheck.com
https://github.com/openclaw/openclaw/security/advisories/GHSA-63mg-xp9j-jfcm
disclosure@vulncheck.com
https://www.vulncheck.com/advisories/openclaw-sender-policy-allowlist-bypass-vi…
disclosure@vulncheck.com