CVE-2026-109423

NetEase Cloud Music client for Windows (cloudmusic.exe) versions 3.1.38 and 3.1.39.205426 contains a TLS certificate validation vulnerability that allows a network-adjacent attacker to intercept and decrypt HTTPS traffic by failing to validate the server certificate chain, verify the hostname, or consult any Windows certificate trust store. Attackers can perform a man-in-the-middle attack using a rogue certificate authority to decrypt traffic, capture the MUSIC_U session credential sent in authenticated API requests, and modify server responses in transit, enabling account takeover and transport-layer response forgery.

CVSS v3 7.4 HIGH

7.4^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.2 / Impact : 5.2

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://gist.github.com/LeoWSY-hashblue/10e5383fc2d4d75faf74a9507c6bba9f
https://hr.163.com/product.html/music
https://www.vulncheck.com/advisories/netease-cloud-music-tls-certificate-validation-bypass

Configurations

No configuration.

History

12 Oct 2026, 20:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-10-12 20:17

Updated : 2026-10-16 18:25

NVD link : CVE-2026-109423

Mitre link : CVE-2026-109423

CVE.ORG link : CVE-2026-109423

JSON object : View

Products Affected

No product.

CWE

CWE-295

Improper Certificate Validation

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