{"id":"CVE-2026-100527","title":"OpenClaw before 2026.8.2 contains a denial of service vulnerability in the Browser extension relay that allows unauthenticated network sources to exhaust pending-authentication capacity","summary":"OpenClaw before 2026.8.2 contains a denial of service vulnerability in the Browser extension relay that allows unauthenticated network sources to exhaust pending-authentication capacity. Attackers can hold every pending slot by maintaini…","severity":"medium","cvss":5.3,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","cwe":["CWE-400"],"vendor":"OpenClaw","product":"OpenClaw","affected":["OpenClaw < 2026.8.2"],"published":"2026-09-26","updated":"2026-09-26","sourceUpdated":"2026-09-26T03:16:57.910","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-100527","references":[{"url":"https://github.com/openclaw/openclaw/security/advisories/GHSA-m78m-7h3q-q938","label":"disclosure@vulncheck.com"},{"url":"https://www.vulncheck.com/advisories/openclaw-before-2026.8.2-denial-of-service-via-browser-relay","label":"disclosure@vulncheck.com"}],"tags":["nvd","cve.org"],"ingestedAt":"2026-09-26T03:25:24.673Z","slug":"CVE-2026-100527","body":"## Overview\n\nOpenClaw before 2026.8.2 contains a denial of service vulnerability in the Browser extension relay that allows unauthenticated network sources to exhaust pending-authentication capacity. Attackers can hold every pending slot by maintaining silent WebSocket upgrades, preventing paired extensions from completing Browser Relay Authentication v2.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":29,"depthScoreParts":{"impact":29.2,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}