Vulnerability in Openclaw
CVE-2026-53843
OpenClaw before 2026.5.26 contains an authorization bypass vulnerability where a surviving pairing-scoped device session can re-establish node token authority after revocation. Attackers with a paired device can regain WebSocket node-level access without renewed approval, weakening revocation controls and maintaining unauthorized access longer than intended.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.005 (39.7th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 40th percentile — 39.7% 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: 0.005 · change: +0.002
Affected products
- Openclaw — versions 0, 2026.5.26
Weakness classification (CWE)
References
- github.com/openclaw/openclaw/security/advisories/GHSA-q99w-vh6v-q3v7 (vendor-advisory, Vendor Advisory)
- www.vulncheck.com/advisories/openclaw-node-token-revocation-bypass-via-pairing-… (Third Party Advisory, third-party-advisory)
Frequently asked questions
- What is CVE-2026-53843?
- CVE-2026-53843 is a high-severity vulnerability in Openclaw, classified under Insufficient Session Expiration. CVSS score: 8.8/10. Published 2026-06-16.
- How severe is CVE-2026-53843?
- High severity. CVSS v3 base score is 8.8 out of 10.