{"id":"CVE-2026-41400","aliases":["EUVD-2026-26108","GHSA-2w79-r9g8-wmcr"],"status":"published","title":"OpenClaw \u003c 2026.3.31 - Resource Consumption via Oversized WebSocket Frames in voice-call","description":"OpenClaw before 2026.3.31 contains an incomplete fix for CVE-2026-32062 where the voice-call component parses large WebSocket frames before start validation. Remote attackers can send oversized pre-start WebSocket frames to cause resource consumption and denial of service.","severity":{"version":"4.0","score":6.9,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.00525,"percentile":0.44855,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-400","CWE-770"],"published":"2026-04-03T03:13:35Z","modified":"2026-10-28T02:30:57Z","fixes":[{"ecosystem":"npm","package":"openclaw","fixed_in":["2026.3.31"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"npm","package":"openclaw","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"last_affected":"2026.3.28"},{"fixed":"2026.3.31"}]}]},{"source":"osv","ecosystem":"npm","package":"openclaw","ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"2026.3.31"}]}]}],"products":[{"vendor":"openclaw","product":"openclaw"}],"references":[{"url":"https://github.com/openclaw/openclaw/security/advisories/GHSA-2w79-r9g8-wmcr","tags":["vendor-advisory","Vendor Advisory","advisory","web"]},{"url":"https://github.com/openclaw/openclaw/commit/9abcfdadf591bf266d85fbdfe14ae833e557a110","tags":["patch","Patch","fix","web"]},{"url":"https://www.vulncheck.com/advisories/openclaw-resource-consumption-via-oversized-websocket-frames-in-voice-call","tags":["third-party-advisory","Third Party Advisory","advisory","web"]},{"url":"https://github.com/openclaw/openclaw/releases/tag/v2026.3.31","tags":["web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-41400","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-2w79-r9g8-wmcr"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/41xxx/CVE-2026-41400.json","tags":["advisory"]},{"url":"https://github.com/openclaw/openclaw","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2026-41400","title":"OpenClaw \u003c 2026.3.31 - Resource Consumption via Oversized WebSocket Frames in voice-call","description":"OpenClaw before 2026.3.31 contains an incomplete fix for CVE-2026-32062 where the voice-call component parses large WebSocket frames before start validation. Remote attackers can send oversized pre-start WebSocket frames to cause resource consumption and denial of service.","status":"published","published":"2026-04-28T18:09:58.616Z","modified":"2026-04-30T12:52:37.612Z","cvss":[{"version":"4.0","score":6.9,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N","level":"medium","assessor":"cna"},{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","level":"medium","assessor":"cna"}],"cwes":["CWE-770"],"updated_at":"2026-11-02T13:41:19.694734Z"}],"euvd":[{"id":"EUVD-2026-26108","description":"OpenClaw before 2026.3.31 contains an incomplete fix for CVE-2026-32062 where the voice-call component parses large WebSocket frames before start validation. Remote attackers can send oversized pre-start WebSocket frames to cause resource consumption and denial of service.","status":"published","published":"2026-04-28T18:09:58Z","modified":"2026-04-30T12:52:37Z","cvss":[{"version":"4.0","score":6.9,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N","level":"medium"}],"updated_at":"2026-11-02T19:05:19.116327Z"}],"ghsa":[{"id":"GHSA-2w79-r9g8-wmcr","title":"OpenClaw: Voice-call still parses large WebSocket frames before start validation (Incomplete fix for CVE-2026-32062)","description":"## Summary\nIncomplete fix for CVE-2026-32062: voice-call still parses large WebSocket frames before start validation\n\n## Current Maintainer Triage\n- Normalized severity: medium\n- Assessment: v2026.3.28 still parses oversized pre-start voice-call WebSocket frames before start validation, and the unreleased maxPayload fix confirms the shipped resource-consumption bug remains open.\n\n## Affected Packages / Versions\n- Package: `openclaw` (npm)\n- Latest published npm version: `2026.3.31`\n- Vulnerable version range: `\u003c=2026.3.28`\n- Patched versions: `\u003e= 2026.3.31`\n- First stable tag containing the fix: `v2026.3.31`\n\n## Fix Commit(s)\n- `9abcfdadf591bf266d85fbdfe14ae833e557a110` — 2026-03-31T19:47:10+09:00\n\nOpenClaw thanks @Kazamayc for reporting.","status":"published","published":"2026-04-03T03:13:35Z","modified":"2026-05-06T02:40:50Z","cvss":[{"version":"4.0","score":6.9,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N","level":"medium"},{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","level":"medium"}],"cwes":["CWE-400","CWE-770"],"updated_at":"2026-11-02T14:40:01.917039Z"}],"nvd":[{"id":"CVE-2026-41400","description":"OpenClaw before 2026.3.31 contains an incomplete fix for CVE-2026-32062 where the voice-call component parses large WebSocket frames before start validation. Remote attackers can send oversized pre-start WebSocket frames to cause resource consumption and denial of service.","status":"published","published":"2026-04-28T19:37:43.553Z","modified":"2026-06-17T10:46:39.8Z","cvss":[{"version":"4.0","score":6.9,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"medium","assessor":"secondary"},{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","level":"medium","assessor":"secondary"},{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"primary"}],"cwes":["CWE-770"],"updated_at":"2026-11-02T14:12:16.252509Z"}],"osv":[{"id":"CVE-2026-41400","title":"OpenClaw \u003c 2026.3.31 - Resource Consumption via Oversized WebSocket Frames in voice-call","description":"OpenClaw before 2026.3.31 contains an incomplete fix for CVE-2026-32062 where the voice-call component parses large WebSocket frames before start validation. Remote attackers can send oversized pre-start WebSocket frames to cause resource consumption and denial of service.","status":"published","published":"2026-04-28T18:09:58.616Z","modified":"2026-10-28T02:30:57.889452532Z","cvss":[{"version":"4.0","score":6.9,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N","level":"medium"}],"cwes":["CWE-770"],"updated_at":"2026-11-02T15:45:03.764807Z"},{"id":"GHSA-2w79-r9g8-wmcr","title":"OpenClaw: Voice-call still parses large WebSocket frames before start validation (Incomplete fix for CVE-2026-32062)","description":"## Summary\nIncomplete fix for CVE-2026-32062: voice-call still parses large WebSocket frames before start validation\n\n## Current Maintainer Triage\n- Normalized severity: medium\n- Assessment: v2026.3.28 still parses oversized pre-start voice-call WebSocket frames before start validation, and the unreleased maxPayload fix confirms the shipped resource-consumption bug remains open.\n\n## Affected Packages / Versions\n- Package: `openclaw` (npm)\n- Latest published npm version: `2026.3.31`\n- Vulnerable version range: `\u003c=2026.3.28`\n- Patched versions: `\u003e= 2026.3.31`\n- First stable tag containing the fix: `v2026.3.31`\n\n## Fix Commit(s)\n- `9abcfdadf591bf266d85fbdfe14ae833e557a110` — 2026-03-31T19:47:10+09:00\n\nOpenClaw thanks @Kazamayc for reporting.","status":"published","published":"2026-04-03T03:13:35Z","modified":"2026-05-06T02:50:00.04429Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","level":"medium"},{"version":"4.0","score":6.9,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N","level":"medium"}],"cwes":["CWE-400","CWE-770"],"updated_at":"2026-11-02T15:46:34.700741Z"}]}}