CVE-2026-119660
criticalMuseBot before 2.0.0 contains an authentication bypass vulnerability that allows unauthenticated attackers to forge admin sessions by using the hard-coded defa…
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:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Affected products
Not reported by the source (unknown — not "none").
Weakness classification (CWE)
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
No vendor advisory or patch reference tagged by NVD. Check the references below.
References
- https://github.com/yincongcyincong/MuseBot disclosure@vulncheck.com
- https://github.com/yincongcyincong/MuseBot/blob/v1.0.42/admin/conf/conf.go#L28 disclosure@vulncheck.com
- https://github.com/yincongcyincong/MuseBot/blob/v1.0.42/admin/controller/login.go#L19-L88 disclosure@vulncheck.com
- https://github.com/yincongcyincong/MuseBot/commit/139f6158b50283b983d76976f593a3a09a064681 disclosure@vulncheck.com
- https://github.com/yincongcyincong/MuseBot/commit/3e64518948fe7037058f07ef987d35216c3f0cae disclosure@vulncheck.com
- https://github.com/yincongcyincong/MuseBot/issues/61 disclosure@vulncheck.com
- https://hackmd.io/@hieuPenguinnn/musebot-admin-default-session-key-auth-bypass disclosure@vulncheck.com
- https://www.vulncheck.com/advisories/musebot-before-2.0.0-authentication-bypass-via-hard-c... disclosure@vulncheck.com