Auth bypass in Openclaw
CVE-2026-35621
OpenClaw before 2026.3.24 contains a privilege escalation vulnerability where the /allowlist command fails to re-validate gateway client scopes for internal callers, allowing operator.write-scoped clients to mutate channel authorization policy. Attackers can exploit chat.send to build an internal command-authorized context and persist channel allowFrom and groupAllowFrom policy changes reserved for operator.admin scope.
Vulnerability class: Broken Access Control
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N.
EPSS exploit prediction
EPSS: 0.003 (23.1th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 23rd percentile — 23.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: +0.001
Affected products
- Openclaw — versions 0, 2026.3.24
Weakness classification (CWE)
References
- github.com/openclaw/openclaw/security/advisories/GHSA-94pw-c6m8-p9p9 (Exploit, vendor-advisory, Mitigation, Vendor Advisory, third-party-advisory)
- www.vulncheck.com/advisories/openclaw-privilege-escalation-via-chat-send-to-all… (Third Party Advisory, third-party-advisory)
Frequently asked questions
- What is CVE-2026-35621?
- CVE-2026-35621 is a medium-severity vulnerability in Openclaw, classified under Missing Authorization. CVSS score: 6.5/10. Published 2026-04-10.
- How severe is CVE-2026-35621?
- Medium severity. CVSS v3 base score is 6.5 out of 10.