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CVE-2025-3730GHSA-887C-MR87-CXWPBIT-PYTORCH-2025-3730PYSEC-2026-1970

PyTorch LossCTC.cpp torch.nn.functional.ctc_loss denial of service

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in 2.8.0
None on Exploit-DB, Metasploit or GitHub
  • Exploitation: poc
  • Automatable: no
  • Technical impact: partial

Summary

A vulnerability, which was classified as problematic, was found in PyTorch 2.6.0. Affected is the function torch.nn.functional.ctc_loss of the file aten/src/ATen/native/LossCTC.cpp. The manipulation leads to denial of service. An attack has to be approached locally. The exploit has been disclosed to the public and may be used. The real existence of this vulnerability is still doubted at the moment. The name of the patch is 46fc5d8e360127361211cb237d5f9eef0223e567. It is recommended to apply a patch to fix this issue. The security policy of the project warns to use unknown models which might establish malicious effects.

Timeline

  1. CVE published
  2. CISA SSVC assessment

    Exploitation: poc · Automatable: no · Technical impact: partial

  3. Record last updated

Affected versions

  • n/a PyTorch

    2.6.0

  • torchPyPI

    fixed in 2.8.0

References 7

vuldb.com

GitHub · pytorch/pytorch

GitHub · timocafe/tewart-pytorch