{"id":"GHSA-f44p-c7w9-7xr7","summary":"OpenClaw: Gateway WebSocket Denial of Service via unbounded pre-auth upgrades","details":"## Summary\n\nThe gateway accepted unbounded concurrent unauthenticated WebSocket upgrades before allocating them to an authenticated session budget.\n\n## Impact\n\nAn unauthenticated network attacker could consume socket and worker capacity and disrupt WebSocket availability for legitimate clients.\n\n## Affected Component\n\n`src/gateway/server-http.ts, src/gateway/server/preauth-connection-budget.ts`\n\n## Fixed Versions\n\n- Affected: `\u003c= 2026.3.24`\n- Patched: `\u003e= 2026.3.28`\n- Latest stable `2026.3.28` contains the fix.\n\n## Fix\n\nFixed by commit `cb5f7e201f` (`gateway: cap concurrent pre-auth websocket upgrades`).\n\nDiscovered by：Topsec AlphaLab (wang dong)","aliases":["CVE-2026-41399"],"modified":"2026-05-05T16:11:44.936766Z","published":"2026-03-31T23:54:00Z","database_specific":{"github_reviewed":true,"github_reviewed_at":"2026-03-31T23:54:00Z","nvd_published_at":null,"cwe_ids":["CWE-400","CWE-770"],"severity":"MODERATE"},"references":[{"type":"WEB","url":"https://github.com/openclaw/openclaw/security/advisories/GHSA-f44p-c7w9-7xr7"},{"type":"WEB","url":"https://github.com/openclaw/openclaw/commit/cb5f7e201f3f86ad70e199ef850e636b4cc457ba"},{"type":"PACKAGE","url":"https://github.com/openclaw/openclaw"}],"affected":[{"package":{"name":"openclaw","ecosystem":"npm","purl":"pkg:npm/openclaw"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"2026.3.28"}]}],"database_specific":{"last_known_affected_version_range":"\u003c= 2026.3.24","source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/03/GHSA-f44p-c7w9-7xr7/GHSA-f44p-c7w9-7xr7.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N"}]}