CVE-2026-31251_CVE-2026-31251

7.3 / 10

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

Description

CosyVoice thru commit 6e01309e01bc93bbeb83bdd996b1182a81aaf11e (2025-30-21) contains an insecure deserialization vulnerability (CWE-502) in its gRPC server component. When the server starts, it loads the speech synthesis model from a user-specified directory using torch.load() without enabling the weights_only=True security parameter. This allows the deserialization of arbitrary Python objects via the pickle module. An attacker can exploit this by providing malicious model files within a directory. When a victim starts the gRPC server pointing to this directory, arbitrary code is executed on the victim's system during server initialization.

Basic Information

ID CVE-2026-31251

Source mitre

Published May 11, 2026 at 00:00

Modified May 12, 2026 at 19:13

Affected Product

Vendor n/a

Product n/a

Version n/a

Affected Versions n/a n/a n/a

CWE Classification

CWE-20 CWE-94 CWE-915

References

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    "published": "2026-05-11T00:00:00.000Z",
    "modified": "2026-05-12T19:13:25.293Z",
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    "title": "CVE-2026-31251",
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    "references": "https://github.com/FunAudioLLM/CosyVoice\nhttps://www.notion.so/CVE-2026-31251-35d1e1393188816f9bf5f3ccea3aa16f",
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