{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-119660","assignerOrgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","state":"PUBLISHED","assignerShortName":"VulnCheck","dateReserved":"2026-10-30T13:43:49.076Z","datePublished":"2026-10-30T14:16:21.246Z","dateUpdated":"2026-10-30T14:16:21.246Z"},"containers":{"cna":{"providerMetadata":{"orgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","shortName":"VulnCheck","dateUpdated":"2026-10-30T14:16:21.246Z"},"datePublic":"2026-10-22T00:00:00.000Z","title":"MuseBot before 2.0.0 Authentication Bypass via Hard-Coded Session Key","descriptions":[{"lang":"en","value":"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."}],"problemTypes":[{"descriptions":[{"lang":"en","description":"Use of Default Cryptographic Key","cweId":"CWE-1394","type":"CWE"}]}],"affected":[{"vendor":"yincongcyincong","product":"MuseBot","defaultStatus":"unaffected","versions":[{"version":"0","lessThan":"2.0.0","status":"affected","versionType":"semver"}],"repo":"https://github.com/yincongcyincong/MuseBot"}],"metrics":[{"format":"CVSS","cvssV4_0":{"version":"4.0","vectorString":"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","attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"NONE","userInteraction":"NONE","vulnConfidentialityImpact":"HIGH","vulnIntegrityImpact":"HIGH","vulnAvailabilityImpact":"HIGH","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","subAvailabilityImpact":"NONE","baseScore":9.3,"baseSeverity":"CRITICAL"}},{"format":"CVSS","cvssV3_1":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH","baseScore":9.8,"baseSeverity":"CRITICAL"}}],"references":[{"url":"https://github.com/yincongcyincong/MuseBot/issues/61","tags":["issue-tracking"]},{"url":"https://github.com/yincongcyincong/MuseBot/commit/3e64518948fe7037058f07ef987d35216c3f0cae","tags":["patch"]},{"url":"https://github.com/yincongcyincong/MuseBot/commit/139f6158b50283b983d76976f593a3a09a064681","tags":["patch"]},{"url":"https://github.com/yincongcyincong/MuseBot/blob/v1.0.42/admin/conf/conf.go#L28","tags":["technical-description"]},{"url":"https://github.com/yincongcyincong/MuseBot/blob/v1.0.42/admin/controller/login.go#L19-L88","tags":["technical-description"]},{"url":"https://hackmd.io/@hieuPenguinnn/musebot-admin-default-session-key-auth-bypass","tags":["third-party-advisory"]},{"url":"https://github.com/yincongcyincong/MuseBot","tags":["product"]},{"name":"VulnCheck Advisory: MuseBot before 2.0.0 Authentication Bypass via Hard-Coded Session Key","tags":["third-party-advisory"],"url":"https://www.vulncheck.com/advisories/musebot-before-2.0.0-authentication-bypass-via-hard-coded-session-key"}],"credits":[{"lang":"en","value":"hieuPenguinnn","type":"finder"},{"lang":"en","value":"yincongcyincong","type":"remediation developer"}],"x_generator":{"engine":"vulncheck-endgame"}}}}