affected:
- package:
    ecosystem: PyPI
    name: torch
    purl: pkg:pypi/torch
  ranges:
  - events:
    - introduced: '0'
    - fixed: 2.7.1
    type: ECOSYSTEM
  versions:
  - 1.0.0
  - 1.0.1
  - 1.1.0
  - 1.10.0
  - 1.10.1
  - 1.10.2
  - 1.11.0
  - 1.12.0
  - 1.12.1
  - 1.13.0
  - 1.13.1
  - 1.2.0
  - 1.3.0
  - 1.3.1
  - 1.4.0
  - 1.5.0
  - 1.5.1
  - 1.6.0
  - 1.7.0
  - 1.7.1
  - 1.8.0
  - 1.8.1
  - 1.9.0
  - 1.9.1
  - 2.0.0
  - 2.0.1
  - 2.1.0
  - 2.1.1
  - 2.1.2
  - 2.2.0
  - 2.2.1
  - 2.2.2
  - 2.3.0
  - 2.3.1
  - 2.4.0
  - 2.4.1
  - 2.5.0
  - 2.5.1
  - 2.6.0
  - 2.7.0
aliases:
- CVE-2025-55560
details: An issue in pytorch v2.7.0 can lead to a Denial of Service (DoS) when a PyTorch
  model consists of torch.Tensor.to_sparse() and torch.Tensor.to_dense() and is compiled
  by Inductor.
id: PYSEC-2025-209
modified: '2026-05-20T09:19:20.117285Z'
published: '2025-09-25T16:15:35.197Z'
references:
- type: ADVISORY
  url: https://gist.github.com/shaoyuyoung/0e7d2a586297ae9c8ed14d8706749efc
- type: REPORT
  url: https://github.com/pytorch/pytorch/issues/151522
- type: FIX
  url: https://github.com/pytorch/pytorch/pull/151897
severity:
- score: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  type: CVSS_V3