CVE-2026-32895CWE-863

OpenClaw < 2026.2.26 - Sender Authorization Bypass in Slack System Event Handlers

Medium · published March 21, 2026

CVSS v4.0
5.3
EPSS
0%
Percentile
23.6
In the wild
Unconfirmed
What it is

OpenClaw versions prior to 2026.2.26 fail to enforce sender authorization in member and message subtype system event handlers, allowing unauthorized events to be enqueued. Attackers can bypass Slack DM allowlists and per-channel user allowlists by sending system events from non-allowlisted senders through message_changed, message_deleted, and thread_broadcast events.

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:L/VA:N/SC:N/SI:N/SA:N
EPSS
0.00319 · 23.6th percentile
Weakness
CWE-863 · Incorrect Authorization
Published
2026-03-21T00:42Z
EPSS history
Timeline
  • 21 MAR 00:42Z
    OpenClaw < 2026.2.26 - Sender Authorization Bypass in Slack System Event Handlers
    cvelistv5