{"id":"CVE-2026-119660","aliases":["EUVD-2026-114076","GHSA-77p8-2qmx-794p"],"status":"published","title":"MuseBot before 2.0.0 Authentication Bypass via Hard-Coded Session Key","description":"MuseBot before 2.0.0 contains an authentication bypass vulnerability that allows unauthenticated attackers to forge admin sessions by using the hard-coded default session_key 'muse_bot_session_key'. Attackers can sign a MuseBot-session cookie carrying a user_id to gain full administrative access, reading password hashes, chat records, and bot configuration, and stopping bots.","severity":{"version":"4.0","score":9.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","level":"critical","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.0052,"percentile":0.4462,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-1394"],"published":"2026-10-30T14:16:21Z","modified":"2026-11-05T21:34:06Z","products":[{"vendor":"yincongcyincong","product":"musebot"}],"references":[{"url":"https://github.com/yincongcyincong/MuseBot/issues/61","tags":["issue-tracking","report"]},{"url":"https://github.com/yincongcyincong/MuseBot/commit/3e64518948fe7037058f07ef987d35216c3f0cae","tags":["patch","fix"]},{"url":"https://github.com/yincongcyincong/MuseBot/commit/139f6158b50283b983d76976f593a3a09a064681","tags":["patch","fix"]},{"url":"https://github.com/yincongcyincong/MuseBot/blob/v1.0.42/admin/conf/conf.go#L28","tags":["technical-description","article"]},{"url":"https://github.com/yincongcyincong/MuseBot/blob/v1.0.42/admin/controller/login.go#L19-L88","tags":["technical-description","article"]},{"url":"https://hackmd.io/@hieuPenguinnn/musebot-admin-default-session-key-auth-bypass","tags":["third-party-advisory","exploit","advisory"]},{"url":"https://github.com/yincongcyincong/MuseBot","tags":["product","package"]},{"url":"https://www.vulncheck.com/advisories/musebot-before-2.0.0-authentication-bypass-via-hard-coded-session-key","tags":["third-party-advisory","advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-119660","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-77p8-2qmx-794p"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/119xxx/CVE-2026-119660.json","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2026-119660","title":"MuseBot before 2.0.0 Authentication Bypass via Hard-Coded Session Key","description":"MuseBot before 2.0.0 contains an authentication bypass vulnerability that allows unauthenticated attackers to forge admin sessions by using the hard-coded default session_key 'muse_bot_session_key'. Attackers can sign a MuseBot-session cookie carrying a user_id to gain full administrative access, reading password hashes, chat records, and bot configuration, and stopping bots.","status":"published","published":"2026-10-30T14:16:21.246Z","modified":"2026-11-05T21:34:06.489Z","cvss":[{"version":"4.0","score":9.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","level":"critical","assessor":"cna"},{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"cna"}],"cwes":["CWE-1394"],"updated_at":"2026-11-05T22:55:19.167207Z"}],"euvd":[{"id":"EUVD-2026-114076","description":"MuseBot before 2.0.0 contains an authentication bypass vulnerability that allows unauthenticated attackers to forge admin sessions by using the hard-coded default session_key 'muse_bot_session_key'. Attackers can sign a MuseBot-session cookie carrying a user_id to gain full administrative access, reading password hashes, chat records, and bot configuration, and stopping bots.","status":"published","published":"2026-10-30T14:16:21Z","modified":"2026-11-05T21:34:06Z","cvss":[{"version":"4.0","score":9.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","level":"critical"}],"updated_at":"2026-11-05T23:02:20.394374Z"}],"ghsa":[{"id":"GHSA-77p8-2qmx-794p","title":"MuseBot before 2.0.0 contains an authentication bypass vulnerability that allows unauthenticated...","description":"MuseBot before 2.0.0 contains an authentication bypass vulnerability that allows unauthenticated attackers to forge admin sessions by using the hard-coded default session_key 'muse_bot_session_key'. Attackers can sign a MuseBot-session cookie carrying a user_id to gain full administrative access, reading password hashes, chat records, and bot configuration, and stopping bots.","status":"published","published":"2026-10-30T15:34:39Z","modified":"2026-10-30T15:34:49Z","cvss":[{"version":"4.0","score":9.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/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":"critical"},{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"cwes":["CWE-1394"],"updated_at":"2026-11-02T15:14:50.290594Z"}],"nvd":[{"id":"CVE-2026-119660","description":"MuseBot before 2.0.0 contains an authentication bypass vulnerability that allows unauthenticated attackers to forge admin sessions by using the hard-coded default session_key 'muse_bot_session_key'. Attackers can sign a MuseBot-session cookie carrying a user_id to gain full administrative access, reading password hashes, chat records, and bot configuration, and stopping bots.","status":"published","published":"2026-10-30T15:16:50.197Z","modified":"2026-11-05T22:17:52.237Z","cvss":[{"version":"4.0","score":9.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/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":"critical","assessor":"secondary"},{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"secondary"}],"cwes":["CWE-1394"],"updated_at":"2026-11-05T23:57:22.877129Z"}],"osv":[{"id":"CVE-2026-119660","title":"MuseBot before 2.0.0 Authentication Bypass via Hard-Coded Session Key","description":"MuseBot before 2.0.0 contains an authentication bypass vulnerability that allows unauthenticated attackers to forge admin sessions by using the hard-coded default session_key 'muse_bot_session_key'. Attackers can sign a MuseBot-session cookie carrying a user_id to gain full administrative access, reading password hashes, chat records, and bot configuration, and stopping bots.","status":"published","published":"2026-10-30T14:16:21.246Z","modified":"2026-11-07T02:30:48.301916537Z","cvss":[{"version":"4.0","score":9.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","level":"critical"}],"cwes":["CWE-1394"],"updated_at":"2026-11-07T03:08:01.41647Z"}]}}