CVE-2026-35622 | THREATINT

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.

PUBLISHED Reserved 2026-04-04 | Published 2026-04-09 | Updated 2026-04-13 | Assigner VulnCheck

MEDIUM: 6.0CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:L/VI:H/VA:N/SC:N/SI:N/SA:N

MEDIUM: 5.9CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:H/A:N

Problem types

CWE-290: Authentication Bypass by Spoofing

Product status

Default status

unaffected

Any version before 2026.3.22

affected

2026.3.22 (semver)

unaffected

Credits

ijxpwastaken finder

References

github.com/...enclaw/security/advisories/GHSA-mp66-rf4f-mhh8 (GitHub Security Advisory (GHSA-mp66-rf4f-mhh8)) third-party-advisory

github.com/...ommit/630f1479c44f78484dfa21bb407cbe6f171dac87 (Patch Commit #1) patch

github.com/...ommit/a47722de7e3c9cbda8d5512747ca7e3bb8f6ee66 (Patch Commit #2) patch

www.vulncheck.com/...ion-verification-in-google-chat-webhook (VulnCheck Advisory: OpenClaw < 2026.3.22 - Improper Authentication Verification in Google Chat Webhook) third-party-advisory

cve.org (CVE-2026-35622)

nvd.nist.gov (CVE-2026-35622)

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