PT-2026-29258 · Zalouser+2 · Zalouser+2

Antaisecuritylab · Published 2026-03-31 · Updated 2026-04-01 · CVE-2026-33578

Positive Technologies (AI Summary)

CVSS v3.1

9.8

Critical

Base vector

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

Name of the Vulnerable Software and Affected Versions OpenClaw versions prior to 2026.3.28

Description The software contains a sender policy bypass issue in the Google Chat and Zalouser extensions. Route-level group allowlist policies are silently downgraded to open policy, allowing attackers to bypass sender restrictions and interact with bots despite configured allowlist restrictions.

Recommendations Update to version 2026.3.28 or later.

Fix

Incorrect Authorization

Weakness Enumeration

CWE-863

Related Identifiers

CVE-2026-33578

GHSA-63MG-XP9J-JFCM

Affected Products

Google Chat

Openclaw

Zalouser

References · 9

• https://github.com/openclaw/openclaw/security/advisories/GHSA-63mg-xp9j-jfcm · Vendor Advisory
• https://github.com/openclaw/openclaw/commit/e64a881ae0fb8af18e451163f4c2d611d60cc8e4 · Patch
• https://osv.dev/vulnerability/GHSA-63mg-xp9j-jfcm · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-33578 · Security Note
• https://github.com/openclaw/openclaw · Note
• https://twitter.com/TheHackerWire/status/2039013913749344555 · Twitter Post
• https://vulncheck.com/advisories/openclaw-sender-policy-allowlist-bypass-via-policy-downgrade-in-google-chat-and-zalouser-extensions · Note
• https://twitter.com/CveFindCom/status/2039005729185509447 · Twitter Post
• https://twitter.com/CVEnew/status/2039004443228725703 · Twitter Post