CVE-2026-119660

MuseBot before 2.0.0 Authentication Bypass via Hard-Coded Session Key

Published Oct 30, 2026 CVSS 4.0 · 9.3 Critical EPSS < 1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Yincongcyincong
Yincongcyincong musebot
Vendors & Products Yincongcyincong
Yincongcyincong musebot
Type Values Removed Values Added
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.
Title MuseBot before 2.0.0 Authentication Bypass via Hard-Coded Session Key
Weaknesses CWE-1394
References
Metrics cvssV3_1

{'score': 9.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'}

cvssV4_0

{'score': 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'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
VulnCheck
Published
Updated
Nov 5, 2026, 9:34 PM
Reserved
Oct 30, 2026, 1:43 PM
Status
Deferred
Published
Oct 30, 2026, 3:16 PM
Modified
Nov 5, 2026, 10:17 PM