{"id":"CVE-2026-119660","title":"MuseBot before 2.0.0 Authentication Bypass via Hard-Coded Session Key","summary":"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 c…","severity":"critical","cvss":9.8,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","cvssSource":"cna","cwe":["CWE-1394"],"vendor":"yincongcyincong","product":"MuseBot","affected":["MuseBot < 2.0.0"],"ssvc":{"exploitation":"poc","automatable":"yes","technicalImpact":"total","timestamp":"2026-11-05T21:33:48.218500Z"},"exploitAvailable":true,"published":"2026-10-30","updated":"2026-11-05","sourceUpdated":"2026-11-05T21:34:06.489Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-119660","references":[{"url":"https://github.com/yincongcyincong/MuseBot/issues/61"},{"url":"https://github.com/yincongcyincong/MuseBot/commit/3e64518948fe7037058f07ef987d35216c3f0cae"},{"url":"https://github.com/yincongcyincong/MuseBot/commit/139f6158b50283b983d76976f593a3a09a064681"},{"url":"https://github.com/yincongcyincong/MuseBot/blob/v1.0.42/admin/conf/conf.go#L28"},{"url":"https://github.com/yincongcyincong/MuseBot/blob/v1.0.42/admin/controller/login.go#L19-L88"},{"url":"https://hackmd.io/@hieuPenguinnn/musebot-admin-default-session-key-auth-bypass"},{"url":"https://github.com/yincongcyincong/MuseBot"},{"url":"https://www.vulncheck.com/advisories/musebot-before-2.0.0-authentication-bypass-via-hard-coded-session-key","label":"VulnCheck Advisory: MuseBot before 2.0.0 Authentication Bypass via Hard-Coded Session Key"}],"tags":["cve.org","exploit-available"],"epss":0.0052,"epssPercentile":0.44397,"ingestedAt":"2026-11-05T16:07:30.287Z","slug":"CVE-2026-119660","body":"## Overview\n\nMuseBot 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.\n\n## Affected\n\n- `MuseBot < 2.0.0`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"abyssal","depthScore":66,"depthScoreParts":{"impact":53.9,"likelihood":0.1,"exploitation":12,"ransomware":0},"changes":[{"seq":234887,"id":"CVE-2026-119660","ts":1793918473853,"field":"exploit_available","old":"false","new":"true"}]}