{"affected":[{"defaultStatus":"unaffected","product":"xiaozhi-esp32-server","source":"CNA: VulnCheck","vendor":"xinnan-tech","versions":[{"lessThanOrEqual":"0.9.8","status":"affected","version":"0","versionType":"semver"}]}],"cveId":"CVE-2026-119703","cwes":["CWE-290"],"description":"xiaozhi-esp32-server through 0.9.8 contains an authentication bypass vulnerability in WebSocketServer._handle_auth that allows remote unauthenticated attackers to skip Bearer HMAC token verification by spoofing the Device-ID header. Attackers supplying an allowlisted MAC-address-shaped device identifier can open an authenticated WebSocket session, issue voice-assistant commands, exchange audio, and read that device's conversation context.","epss":{"date":"2026-11-04","percentile":0.27583,"score":0.0034},"exploits":[{"kind":"exploit","source":"ADP: CISA-ADP","url":"https://github.com/xinnan-tech/xiaozhi-esp32-server/issues/3448"}],"kev":null,"metrics":[{"score":6.3,"severity":"medium","source":"CNA: VulnCheck","vector":"CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N","version":"4.0"},{"score":4.8,"severity":"medium","source":"CNA: VulnCheck","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N","version":"3.1"},{"score":6.3,"severity":"medium","source":"NVD: disclosure@vulncheck.com","vector":"CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/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","version":"4.0"},{"score":4.8,"severity":"medium","source":"NVD: disclosure@vulncheck.com","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N","version":"3.1"}],"modifiedAt":1793834242093,"publishedAt":1793373363996,"references":[{"source":"CNA: VulnCheck","tags":["issue-tracking"],"url":"https://github.com/xinnan-tech/xiaozhi-esp32-server/issues/3448"},{"source":"CNA: VulnCheck","tags":["product"],"url":"https://github.com/xinnan-tech/xiaozhi-esp32-server"},{"source":"CNA: VulnCheck","tags":["technical-description"],"url":"https://github.com/xinnan-tech/xiaozhi-esp32-server/blob/v0.9.8/main/xiaozhi-server/core/websocket_server.py#L211-L232"},{"source":"CNA: VulnCheck","tags":["patch","issue-tracking"],"url":"https://github.com/xinnan-tech/xiaozhi-esp32-server/pull/3457"},{"source":"CNA: VulnCheck","tags":["third-party-advisory"],"url":"https://www.vulncheck.com/advisories/xiaozhi-esp32-server-through-0.9.8-authentication-bypass-via-spoofed-device-id-header"},{"source":"ADP: CISA-ADP","tags":["exploit"],"url":"https://github.com/xinnan-tech/xiaozhi-esp32-server/issues/3448"},{"source":"disclosure@vulncheck.com","tags":[],"url":"https://github.com/xinnan-tech/xiaozhi-esp32-server"},{"source":"disclosure@vulncheck.com","tags":[],"url":"https://github.com/xinnan-tech/xiaozhi-esp32-server/blob/v0.9.8/main/xiaozhi-server/core/websocket_server.py#L211-L232"},{"source":"disclosure@vulncheck.com","tags":[],"url":"https://github.com/xinnan-tech/xiaozhi-esp32-server/issues/3448"},{"source":"disclosure@vulncheck.com","tags":[],"url":"https://github.com/xinnan-tech/xiaozhi-esp32-server/pull/3457"},{"source":"disclosure@vulncheck.com","tags":[],"url":"https://www.vulncheck.com/advisories/xiaozhi-esp32-server-through-0.9.8-authentication-bypass-via-spoofed-device-id-header"},{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","tags":[],"url":"https://github.com/xinnan-tech/xiaozhi-esp32-server/issues/3448"}],"remediation":[{"kind":"fix","source":"CNA: VulnCheck","text":"The reporting source identifies this reference as a patch. Check the advisory for affected versions and supported release branches.","url":"https://github.com/xinnan-tech/xiaozhi-esp32-server/pull/3457"}],"revision":"8d40c98726aff91c43088ac5a25eaf2daad34c09fe235688bd70774642cd60ca","sources":[{"modifiedAt":1793832555168,"name":"CNA: VulnCheck","retrievedAt":1793833745415,"url":"https://www.cve.org/CVERecord?id=CVE-2026-119703"},{"modifiedAt":1793834242093,"name":"NVD","retrievedAt":1793838190404,"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-119703"},{"modifiedAt":null,"name":"FIRST EPSS","retrievedAt":1793833758574,"url":"https://api.first.org/data/v1/epss?cve=CVE-2026-119703"}],"ssvc":{"assessedAt":1793832532705,"automatable":"no","exploitation":"poc","source":"ADP: CISA-ADP","technicalImpact":"partial"},"status":"published","title":"xiaozhi-esp32-server through 0.9.8 Authentication Bypass via Spoofed Device-ID Header","updatedAt":1793838190404}