CVE-2026-109423 (GCVE-0-2026-109423)
Vulnerability from cvelistv5 – Published: 2026-10-12 19:34 – Updated: 2026-10-15 13:42
VLAI
EPSS
VEX
Title
NetEase Cloud Music TLS Certificate Validation Bypass
Summary
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.
Severity
7.4 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-15 13:42 UTC
CWE
- CWE-295 - Improper Certificate Validation
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://gist.github.com/LeoWSY-hashblue/10e5383fc… | technical-description |
| https://hr.163.com/product.html/music | product |
| https://www.vulncheck.com/advisories/netease-clou… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| NetEase | NetEase Cloud Music for Windows |
Affected:
3.1.38
(custom)
Affected: 3.1.39.205426 (custom) |
guessed |
Date Public
2026-09-29 00:00
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