CVE-2026-31250_CVE-2026-31250

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 average_model.py model averaging tool. The script loads PyTorch checkpoint files (epoch_*.pt) for model averaging 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 checkpoint files within a directory. When a victim uses the tool to average models from this directory, arbitrary code is executed on the victim's system.

Basic Information

ID CVE-2026-31250

Source mitre

Published May 11, 2026 at 00:00

Modified May 12, 2026 at 19:05

Affected Product

Vendor n/a

Product n/a

Version n/a

Affected Versions n/a n/a n/a

CWE Classification

CWE-502

References

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    "published": "2026-05-11T00:00:00.000Z",
    "modified": "2026-05-12T19:05:45.515Z",
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    "references": "https://github.com/FunAudioLLM/CosyVoice\nhttps://www.notion.so/CVE-2026-31250-35d1e13931888147a9a3e1c5e239a0a7",
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