Description
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.
Published: 2026-03-21
Score: 5.3 Medium
EPSS: < 1% Very Low
KEV: No
Impact: Unauthorized Event Injection via Slack System Event Bypass
Action: Apply Patch
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories
Source ID Title
Github GHSA Github GHSA GHSA-v8cg-4474-49v8 OpenClaw: Slack system events bypass sender authorization in member and message subtype handlers
History

Mon, 23 Mar 2026 19:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Sat, 21 Mar 2026 05:30:00 +0000

Type Values Removed Values Added
Description 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.
Title OpenClaw < 2026.2.26 - Sender Authorization Bypass in Slack System Event Handlers
First Time appeared Openclaw
Openclaw openclaw
Weaknesses CWE-863
CPEs cpe:2.3:a:openclaw:openclaw:*:*:*:*:*:node.js:*:*
Vendors & Products Openclaw
Openclaw openclaw
References
Metrics cvssV3_1

{'score': 5.4, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N'}

cvssV4_0

{'score': 5.3, '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'}


Subscriptions

Openclaw Openclaw
cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-03-23T18:46:18.897Z

Reserved: 2026-03-16T21:18:44.710Z

Link: CVE-2026-32895

cve-icon Vulnrichment

Updated: 2026-03-23T18:45:33.521Z

cve-icon NVD

Status : Analyzed

Published: 2026-03-21T01:17:10.303

Modified: 2026-03-23T19:47:30.360

Link: CVE-2026-32895

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-03-25T14:42:50Z

Weaknesses