Vulnerability 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.
CVSS Score
CRITICAL
Related Weaknesses (CWE)
References
- https://github.com/yincongcyincong/MuseBot
- 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.g
- https://github.com/yincongcyincong/MuseBot/commit/139f6158b50283b983d76976f593a3
- https://github.com/yincongcyincong/MuseBot/commit/3e64518948fe7037058f07ef987d35
- https://github.com/yincongcyincong/MuseBot/issues/61
- https://hackmd.io/@hieuPenguinnn/musebot-admin-default-session-key-auth-bypass
- https://www.vulncheck.com/advisories/musebot-before-2.0.0-authentication-bypass-
FAQ
What is CVE-2026-119660?
CVE-2026-119660 is a vulnerability with a CVSS score of 9.8 (CRITICAL). 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'. A...
How severe is CVE-2026-119660?
CVE-2026-119660 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.
Is there a patch for CVE-2026-119660?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.