CVE-2026-33578CWE-863

OpenClaw < 2026.3.28 - Sender Policy Allowlist Bypass via Policy Downgrade in Google Chat and Zalouser Extensions

Medium · published March 31, 2026

CVSS v4.0
5.3
EPSS
0%
Percentile
22.3
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v4.0
5.3 · MEDIUM
Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
EPSS
0.00307 · 22.3th percentile
Weakness
CWE-863 · Incorrect Authorization
Published
2026-03-31T14:10Z
EPSS history
Timeline
  • 31 MAR 14:10Z
    OpenClaw < 2026.3.28 - Sender Policy Allowlist Bypass via Policy Downgrade in Google Chat and Zalouser Extensions
    cvelistv5