High severity · published Apr 9, 2026
CVE-2026-35622
OpenClaw < 2026.3.22 - Improper Authentication Verification in Google Chat Webhook
7.1
CVSS
0.3%
EPSS
No
On KEV
Description
OpenClaw before 2026.3.22 contains an improper authentication verification vulnerability in Google Chat app-url webhook handling that accepts add-on principals outside intended deployment bindings. Attackers can bypass webhook authentication by providing non-deployment add-on principals to execute unauthorized actions through the Google Chat integration.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
Low
Integrity
High
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 22% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
OP
OpenClaw · OpenClaw
before 2026.3.22 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-35622
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-35622
Patch
https://github.com/openclaw/openclaw/commit/630f1479c44f78484dfa21bb407cbe6f171dac87
Patch
https://github.com/openclaw/openclaw/commit/a47722de7e3c9cbda8d5512747ca7e3bb8f6ee66
Vendor Advisory
https://github.com/openclaw/openclaw/security/advisories/GHSA-mp66-rf4f-mhh8
Third Party Advisory
https://www.vulncheck.com/advisories/openclaw-improper-authentication-verification-in-google-chat-webhook
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