The CosyVoice project thru commit 6e01309e01bc93bbeb83bdd996b1182a81aaf11e (2025-30-21) contains an insecure deserialization vulnerability (CWE-502) in its model loading process. When loading model files (.pt) from a user-specified directory (via the --model_dir argument), the code uses torch.load() without the security-restrictive weights_only=True parameter. This allows the deserialization of arbitrary Python objects via the Pickle module. An attacker can exploit this by providing a maliciously crafted model directory containing .pt files with embedded pickle payloads. When a victim loads this directory using CosyVoice's web interface, the malicious payload is executed, leading to remote code execution on the victim's system.
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History
Tue, 12 May 2026 20:15:00 +0000
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Tue, 12 May 2026 18:45:00 +0000
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| Title | Insecure Deserialization in CosyVoice Model Loading Enables Remote Code Execution |
Tue, 12 May 2026 17:30:00 +0000
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| Description | The CosyVoice project thru commit 6e01309e01bc93bbeb83bdd996b1182a81aaf11e (2025-30-21) contains an insecure deserialization vulnerability (CWE-502) in its model loading process. When loading model files (.pt) from a user-specified directory (via the --model_dir argument), the code uses torch.load() without the security-restrictive weights_only=True parameter. This allows the deserialization of arbitrary Python objects via the Pickle module. An attacker can exploit this by providing a maliciously crafted model directory containing .pt files with embedded pickle payloads. When a victim loads this directory using CosyVoice's web interface, the malicious payload is executed, leading to remote code execution on the victim's system. | |
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Status: PUBLISHED
Assigner: mitre
Published: 2026-05-12T00:00:00.000Z
Updated: 2026-05-12T17:08:16.567Z
Reserved: 2026-03-09T00:00:00.000Z
Link: CVE-2026-31232
No data.
Status : Received
Published: 2026-05-12T18:16:51.507
Modified: 2026-05-12T18:16:51.507
Link: CVE-2026-31232
No data.
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