CVE-2026-32895
MEDIUMOpenClaw < 2026.2.26 - Sender Authorization Bypass in Slack System Event Handlers
Title source: cnaDescription
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.
References (3)
Core 3
Core References
Third Party Advisory third-party-advisory
GitHub Security Advisory (GHSA-v8cg-4474-49v8)
https://github.com/openclaw/openclaw/security/advisories/GHSA-v8cg-4474-49v8
Patch patch
Patch Commit
https://github.com/openclaw/openclaw/commit/3d30ba18a2aba1e1b302e77ff33145c3b06c01c8
Third Party Advisory third-party-advisory
VulnCheck Advisory: OpenClaw < 2026.2.26 - Sender Authorization Bypass in Slack System Event Handlers
https://www.vulncheck.com/advisories/openclaw-sender-authorization-bypass-in-slack-system-event-handlers
Scores
CVSS v3
5.4
EPSS
0.0003
EPSS Percentile
9.9%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
partial
Details
CWE
CWE-863
Status
published
Products (4)
npm/openclaw
0 - 2026.2.26npm
OpenClaw/OpenClaw
< 2026.2.26
openclaw/openclaw
< 2026.2.26
OpenClaw/OpenClaw
2026.2.26
Published
Mar 21, 2026
Tracked Since
Mar 21, 2026