CVE-2026-32895
OpenClaw < 2026.2.26 - Sender Authorization Bypass in Slack System Event Handlers
CVSS Score
5.4
EPSS Score
0.0%
EPSS Percentile
7th
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.
| CWE | CWE-863 |
| Vendor | openclaw |
| Product | openclaw |
| Published | Mar 21, 2026 |
| Last Updated | Mar 23, 2026 |
Stay Ahead of the Next One
Get instant alerts for openclaw openclaw
Be the first to know when new medium vulnerabilities affecting openclaw openclaw are published — delivered to Slack, Telegram or Discord.
Get Free Alerts →
Free · No credit card · 60 sec setup
CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
Low
Availability
None
Affected Versions
OpenClaw / OpenClaw
0 < 2026.2.26
References
github.com: https://github.com/openclaw/openclaw/security/advisories/GHSA-v8cg-4474-49v8 github.com: https://github.com/openclaw/openclaw/commit/3d30ba18a2aba1e1b302e77ff33145c3b06c01c8 vulncheck.com: https://www.vulncheck.com/advisories/openclaw-sender-authorization-bypass-in-slack-system-event-handlers
Credits
🔍 tdjackey