Vulnerability in Openclaw
CVE-2026-35622
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 · last modified .
CVSS v3 metric
CVSS v3 base score 5.9 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:H/A:N.
EPSS exploit prediction
EPSS: 0.004 (34.6th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 35th percentile — 34.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.004 · change: +0.001
Affected products
- Openclaw — versions 0, 2026.3.22
Weakness classification (CWE)
References
- github.com/openclaw/openclaw/security/advisories/GHSA-mp66-rf4f-mhh8 (vendor-advisory, Vendor Advisory, third-party-advisory)
- github.com/openclaw/openclaw/commit/630f1479c44f78484dfa21bb407cbe6f171dac87 (Patch, patch)
- github.com/openclaw/openclaw/commit/a47722de7e3c9cbda8d5512747ca7e3bb8f6ee66 (Patch, patch)
- www.vulncheck.com/advisories/openclaw-improper-authentication-verification-in-g… (Third Party Advisory, third-party-advisory)
Frequently asked questions
- What is CVE-2026-35622?
- CVE-2026-35622 is a medium-severity vulnerability in Openclaw, classified under Authentication Bypass by Spoofing. CVSS score: 5.9/10. Published 2026-04-09.
- How severe is CVE-2026-35622?
- Medium severity. CVSS v3 base score is 5.9 out of 10.