CVE-2026-109424 – NetEase Cloud Music Weak Encryption via eapi/xeapi

​CVE ID :CVE-2026-109424

Published : Oct. 12, 2026, 8:17 p.m. | 14 minutes ago

Description :NetEase Cloud Music client for Windows (cloudmusic.exe) versions 3.1.38 and 3.1.39.205426 contains a weak encryption vulnerability where /eapi/ and /xeapi/ API response bodies are decrypted using a fixed, publicly documented AES-128-ECB key with no integrity credential. Attackers who can intercept or originate server responses can construct valid ciphertext under the known key with PKCS#7 padding, enabling the client to accept forged API responses that serve as a prerequisite for further exploitation such as reaching the os.navigateExternal bridge.

Severity: 8.2 | HIGH

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