CVE-2026-33578

MEDIUM

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

Title source: cna

Description

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.

References (3)

[Third Party Advisory] https://github.com/openclaw/openclaw/security/advisories/GHSA-63mg-xp9j-jfcm

[Patch] https://github.com/openclaw/openclaw/commit/e64a881ae0fb8af18e451163f4c2d611d60cc8e4

View Patch ZIP pw:eip

[Third Party Advisory] https://www.vulncheck.com/advisories/openclaw-sender-policy-allowlist-bypass-via-policy-downgrade-in-google-chat-and-zalouser-extensions

Scores

CVSS v3 4.3

EPSS 0.0001

EPSS Percentile 1.1%

Attack Vector NETWORK

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

CISA SSVC

Vulnrichment

Exploitation none

Automatable no

Technical Impact total

Details

CWE

CWE-863

Status published

Products (4)

npm/openclaw 0 - 2026.3.28npm

OpenClaw/OpenClaw < 2026.3.28

openclaw/openclaw < 2026.3.28

OpenClaw/OpenClaw 2026.3.28

Published Mar 31, 2026

Tracked Since Mar 31, 2026