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CVE-2026-119660— MuseBot before 2.0.0 Authentication Bypass via Hard-Coded Session Key

Quick assessment

Affected
yincongcyincong MuseBot
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

2.0.0 之前的 MuseBot 版本存在身份验证绕过漏洞。未认证的攻击者可以利用硬编码的默认会话密钥 伪造管理员会话。攻击者可以签署携带 的 MuseBot 会话 Cookie，从而获得完整的管理权限，进而读取密码哈希值、聊天记录和机器人配置，并停止机器人运行。

CVSS 9.8 · Critical EPSS 0.52% · P44

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 1

VendorProduct Version RangeStatus
yincongcyincong MuseBot < 2.0.0 affected
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I. Basic Information for CVE-2026-119660

Vulnerability Information
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Vulnerability Title
MuseBot before 2.0.0 Authentication Bypass via Hard-Coded Session Key
Source: CVE Program / CVE List V5
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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
CWE-1394
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
yincongcyincong MuseBot 0 ~ 2.0.0 -

II. Public POCs for CVE-2026-119660

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III. Intelligence Information for CVE-2026-119660

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Vendor Advisories for CVE-2026-119660 (1)

Proof of Concept for CVE-2026-119660 (1)

Security Blog Posts for CVE-2026-119660 (1)

Other References for CVE-2026-119660 (2)

IV. Related Vulnerabilities

Same weakness: CWE-1394