Vulnerability in Openclaw
CVE-2026-62220
OpenClaw 2026.2.25 before 2026.5.26 allow a lower-trust caller or configured input path to bypass non-browser rate limits on WebSocket authentication attempts. When the affected feature is enabled and reachable by lower-trust input, this can consume gateway resources and reduce service availability.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L.
EPSS exploit prediction
EPSS: 0.005 (43.2th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 43rd percentile — 43.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000
Affected products
- Openclaw — versions 2026.2.25, 2026.5.26
Weakness classification (CWE)
References
- github.com/openclaw/openclaw/security/advisories/GHSA-5p6w-wmh3-frfr (vendor-advisory, Vendor Advisory)
- www.vulncheck.com/advisories/openclaw-websocket-rate-limit-bypass (Third Party Advisory, third-party-advisory)
Frequently asked questions
- What is CVE-2026-62220?
- CVE-2026-62220 is a medium-severity vulnerability in Openclaw, classified under Improper Restriction of Excessive Authentication Attempts. CVSS score: 5.3/10. Published 2026-07-17.
- How severe is CVE-2026-62220?
- Medium severity. CVSS v3 base score is 5.3 out of 10.