CVE-2026-119660

Published: Oct 30, 2026Modified: Oct 30, 2026Deferred

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

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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:XShow less

Source: disclosure@vulncheck.com (Secondary)

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.

Related CWEs

Use of Default Cryptographic Key

The product uses a default cryptographic key for potentially critical functionality.

References (8)

https://github.com/yincongcyincong/MuseBot

Source: disclosure@vulncheck.com

https://github.com/yincongcyincong/MuseBot/blob/v1.0.42/admin/conf/conf.go#L28

Source: disclosure@vulncheck.com

https://github.com/yincongcyincong/MuseBot/blob/v1.0.42/admin/controller/login.go#L19-L88

Source: disclosure@vulncheck.com

https://github.com/yincongcyincong/MuseBot/commit/139f6158b50283b983d76976f593a3a09a064681

Source: disclosure@vulncheck.com

https://github.com/yincongcyincong/MuseBot/commit/3e64518948fe7037058f07ef987d35216c3f0cae

Source: disclosure@vulncheck.com

https://github.com/yincongcyincong/MuseBot/issues/61

Source: disclosure@vulncheck.com

https://hackmd.io/@hieuPenguinnn/musebot-admin-default-session-key-auth-bypass

Source: disclosure@vulncheck.com

https://www.vulncheck.com/advisories/musebot-before-2.0.0-authentication-bypass-via-hard-coded-session-key

Source: disclosure@vulncheck.com

Timeline

No history available yet.