{"id":"CVE-2026-42437","summary":"OpenClaw 2026.4.9 \u003c 2026.4.10 - Denial of Service via Oversized WebSocket Frames in Voice-call Realtime Path","details":"OpenClaw versions 2026.4.9 before 2026.4.10 contain a denial of service vulnerability in the voice-call realtime WebSocket path that accepts oversized frames without proper validation. Remote attackers can send oversized WebSocket frames to cause service unavailability for deployments exposing the voice-call realtime WebSocket path.","aliases":["GHSA-vw3h-q6xq-jjm5"],"modified":"2026-07-08T08:13:19.211107639Z","published":"2026-05-05T11:24:55.977Z","database_specific":{"cna_assigner":"VulnCheck","cwe_ids":["CWE-770"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/42xxx/CVE-2026-42437.json"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/42xxx/CVE-2026-42437.json"},{"type":"ADVISORY","url":"https://github.com/openclaw/openclaw/security/advisories/GHSA-vw3h-q6xq-jjm5"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-42437"},{"type":"ADVISORY","url":"https://www.vulncheck.com/advisories/openclaw-denial-of-service-via-oversized-websocket-frames-in-voice-call-realtime-path"},{"type":"FIX","url":"https://github.com/openclaw/openclaw/commit/afadb7dae6738819ad9c7d2597ace0516957d20e"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/openclaw/openclaw","events":[{"introduced":"0512059dd4e6d2e582393828b837c376ddc4719c"},{"fixed":"44e5b62c27e088128e32e209c146de346c3ea7e6"},{"fixed":"afadb7dae6738819ad9c7d2597ace0516957d20e"}],"database_specific":{"extracted_events":[{"introduced":"2026.4.9"},{"fixed":"2026.4.10"}],"source":["DESCRIPTION","REFERENCES"]}}],"versions":["v2026.4.9"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-42437.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N"}]}