{"id":"CVE-2026-119660","aliases":[],"cve":{"records":[{"id":"CVE-2026-119660","source":"VulnCheck","state":"PUBLISHED","reasons":[],"replacements":[],"disputed":false,"unsupportedWhenAssigned":false,"reserved":"2026-10-30T13:43:49.076Z","published":"2026-10-30T14:16:21.246Z","modified":"2026-11-05T21:34:06.489Z"}],"publishers":[{"name":"VulnCheck","role":"CNA","organizationId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","modified":"2026-10-30T14:16:21.246Z"},{"name":"CISA-ADP","role":"ADP","organizationId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","modified":"2026-11-05T21:34:06.489Z"}],"references":[{"url":"https://github.com/yincongcyincong/MuseBot/issues/61","tags":["issue-tracking"],"source":"VulnCheck"},{"url":"https://github.com/yincongcyincong/MuseBot/commit/3e64518948fe7037058f07ef987d35216c3f0cae","tags":["patch"],"source":"VulnCheck"},{"url":"https://github.com/yincongcyincong/MuseBot/commit/139f6158b50283b983d76976f593a3a09a064681","tags":["patch"],"source":"VulnCheck"},{"url":"https://github.com/yincongcyincong/MuseBot/blob/v1.0.42/admin/conf/conf.go#L28","tags":["technical-description"],"source":"VulnCheck"},{"url":"https://github.com/yincongcyincong/MuseBot/blob/v1.0.42/admin/controller/login.go#L19-L88","tags":["technical-description"],"source":"VulnCheck"},{"url":"https://hackmd.io/@hieuPenguinnn/musebot-admin-default-session-key-auth-bypass","tags":["third-party-advisory"],"source":"VulnCheck"},{"url":"https://github.com/yincongcyincong/MuseBot","tags":["product"],"source":"VulnCheck"},{"url":"https://www.vulncheck.com/advisories/musebot-before-2.0.0-authentication-bypass-via-hard-coded-session-key","tags":["third-party-advisory"],"source":"VulnCheck"},{"url":"https://hackmd.io/@hieuPenguinnn/musebot-admin-default-session-key-auth-bypass","tags":["exploit"],"source":"CISA-ADP"}],"weaknesses":[{"id":"CWE-1394","description":"Use of Default Cryptographic Key","source":"VulnCheck"}],"applicability":[],"prioritization":[{"source":"CISA-ADP","type":"SSVC","role":"CISA Coordinator","timestamp":"2026-11-05T21:33:48.218500Z","decisions":[{"name":"Exploitation","value":"poc"},{"name":"Automatable","value":"yes"},{"name":"Technical Impact","value":"total"}]}]},"title":"MuseBot before 2.0.0 Authentication Bypass via Hard-Coded Session Key","titleSource":"VulnCheck","descriptionSource":"VulnCheck","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.","score":9.8,"severity":"critical","published":"2026-10-30T14:16:21.246Z","modified":"2026-11-05T21:34:06.489Z","withdrawn":false,"knownExploited":false,"affected":[],"products":[{"vendor":"yincongcyincong","name":"MuseBot","platforms":[],"versions":[{"version":"0","status":"affected","lessThan":"2.0.0","versionType":"semver"}],"defaultStatus":"unaffected","cpes":[],"source":"VulnCheck","url":"https://www.cve.org/CVERecord?id=CVE-2026-119660"}],"remediation":[],"references":["https://github.com/yincongcyincong/MuseBot/issues/61","https://github.com/yincongcyincong/MuseBot/commit/3e64518948fe7037058f07ef987d35216c3f0cae","https://github.com/yincongcyincong/MuseBot/commit/139f6158b50283b983d76976f593a3a09a064681","https://github.com/yincongcyincong/MuseBot/blob/v1.0.42/admin/conf/conf.go#L28","https://github.com/yincongcyincong/MuseBot/blob/v1.0.42/admin/controller/login.go#L19-L88","https://hackmd.io/@hieuPenguinnn/musebot-admin-default-session-key-auth-bypass","https://github.com/yincongcyincong/MuseBot","https://www.vulncheck.com/advisories/musebot-before-2.0.0-authentication-bypass-via-hard-coded-session-key"],"sources":[{"name":"CVE","id":"CVE-2026-119660","modified":"2026-11-05T21:34:06.489Z","url":"https://www.cve.org/CVERecord?id=CVE-2026-119660"}],"assessments":[{"source":"VulnCheck","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","score":9.3},{"source":"VulnCheck","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","score":9.8}],"sourceAffected":[],"observedAt":"2026-11-05T23:12:36.940Z","kev":{"status":"not-listed","checkedAt":"2026-11-08T03:30:31.657Z"},"coverage":[{"source":"NVD","status":"available","checkedAt":"2026-11-06T04:50:35.770Z","attemptedAt":"2026-11-06T04:50:35.770Z"},{"source":"GHSA","status":"available","checkedAt":"2026-11-06T04:55:34.932Z","attemptedAt":"2026-11-06T04:55:34.932Z"},{"source":"EUVD","status":"available","checkedAt":"2026-11-06T04:55:32.292Z","attemptedAt":"2026-11-06T04:55:32.292Z"},{"source":"EPSS","status":"available","checkedAt":"2026-11-06T04:50:35.576Z","attemptedAt":"2026-11-06T04:50:35.576Z"}],"evidence":[{"source":"FIRST EPSS","id":"CVE-2026-119660","url":"https://www.first.org/epss/","probability":0.0052,"percentile":0.44311,"date":"2026-11-05","checkedAt":"2026-11-06T04:50:35.576Z"},{"source":"NVD","id":"CVE-2026-119660","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-119660","modified":"2026-11-05T22:17:52.237","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","checkedAt":"2026-11-06T04:50:35.770Z"},{"source":"NVD","id":"CVE-2026-119660","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-119660","modified":"2026-11-05T22:17:52.237","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","checkedAt":"2026-11-06T04:50:35.770Z"},{"source":"ENISA EUVD","id":"EUVD-2026-114076","url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-114076","modified":"Nov 5, 2026, 9:34:06 PM","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","checkedAt":"2026-11-06T04:55:32.292Z"},{"source":"GitHub Advisory Database","id":"GHSA-77p8-2qmx-794p","url":"https://github.com/advisories/GHSA-77p8-2qmx-794p","modified":"2026-10-30T15:34:49Z","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","checkedAt":"2026-11-06T04:55:34.932Z"}],"aiSummary":{"text":"MuseBot before 2.0.0 has an authentication bypass vulnerability via a hard-coded session key, allowing unauthenticated attackers to gain administrative access. The weakness is due to the use of a default cryptographic key. This may allow attackers to read sensitive data and stop bots.","model":"@cf/meta/llama-3.3-70b-instruct-fp8-fast","generatedAt":"2026-10-31T14:01:10.439Z","sources":[{"name":"CVE","url":"https://www.cve.org/CVERecord?id=CVE-2026-119660"}]}}