Auth bypass in Openclaw
CVE-2026-32895
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.
Vulnerability class: Broken Access Control
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N.
EPSS exploit prediction
EPSS: 0.003 (21.1th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 21st percentile — 21.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.003 · change: +0.001
Affected products
- Openclaw — versions 0, 2026.2.26
Weakness classification (CWE)
References
- github.com/openclaw/openclaw/security/advisories/GHSA-v8cg-4474-49v8 (vendor-advisory, Vendor Advisory, third-party-advisory)
- github.com/openclaw/openclaw/commit/3d30ba18a2aba1e1b302e77ff33145c3b06c01c8 (Patch, patch)
- www.vulncheck.com/advisories/openclaw-sender-authorization-bypass-in-slack-syst… (Third Party Advisory, third-party-advisory)
Frequently asked questions
- What is CVE-2026-32895?
- CVE-2026-32895 is a medium-severity vulnerability in Openclaw, classified under Incorrect Authorization. CVSS score: 5.4/10. Published 2026-03-21.
- How severe is CVE-2026-32895?
- Medium severity. CVSS v3 base score is 5.4 out of 10.