CVE-2026-35622CWE-290

OpenClaw < 2026.3.22 - Improper Authentication Verification in Google Chat Webhook

Medium · published April 9, 2026

CVSS v4.0
6.0
EPSS
0%
Percentile
36.0
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v4.0
6.0 · MEDIUM
Vector
CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:L/VI:H/VA:N/SC:N/SI:N/SA:N
EPSS
0.00428 · 36.0th percentile
Weakness
CWE-290 · Authentication Bypass by Spoofing
Published
2026-04-09T21:26Z
EPSS history
Timeline
  • 09 APR 21:26Z
    OpenClaw < 2026.3.22 - Improper Authentication Verification in Google Chat Webhook
    cvelistv5