CVE-2026-32899 MEDIUM

CVE-2026-32899: OpenClaw < 2026.2.25 - Sender Policy Bypass in Slack Reaction and Pin Event Handlers

Vendor Openclaw
Product OpenClaw
Weakness CWE-863 · Incorrect authorization
Published March 21, 2026
Last update March 21, 2026

CVSS base score

5.3/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality
Integrity

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N

What the vulnerability does

01Description

OpenClaw versions prior to 2026.2.25 fail to consistently apply sender-policy checks to reaction_* and pin_* non-message events before adding them to system-event context. Attackers can bypass configured DM policies and channel user allowlists to inject unauthorized reaction and pin events from restricted senders.

Key dates

02Disclosure timeline

March 21, 2026 CVE published
March 21, 2026 Record updated