PyTorch LossCTC.cpp torch.nn.functional.ctc_loss denial of service (PyTorch)
At a glance
- Source
- NVD
- EPSS
- EPSS 0.33 % · percentile 26 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- VulDB
- NVD status
- Analyzed
Description
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.
Weaknesses (CWE)
- CWE-404 — Improper Resource Shutdown or Release
References
- https://vuldb.com/?id.305076
- https://vuldb.com/?ctiid.305076
- https://vuldb.com/?submit.553645
- https://github.com/pytorch/pytorch/issues/150835
- https://github.com/pytorch/pytorch/pull/150981
- https://github.com/pytorch/pytorch/issues/150835#issue-2979082232
- https://github.com/timocafe/tewart-pytorch/commit/46fc5d8e360127361211cb237d5f9eef0223e567
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 4.0 | MEDIUM 4.8 | CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N | VulDB |
| CVSS 3.1 | LOW 3.3 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L | VulDB |
| CVSS 3.0 | LOW 3.3 | CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L | VulDB |
| CVSS 2.0 | LOW 1.7 | AV:L/AC:L/Au:S/C:N/I:N/A:P | VulDB |
| CVSS 4.0 | MEDIUM 4.8 | CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X | NVD · cna@vuldb.com (Secondary) |
| CVSS 3.1 | LOW 3.3 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L | NVD · cna@vuldb.com (Secondary) |
| CVSS 3.1 | MEDIUM 5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H | NVD · nvd@nist.gov (Primary) |
| CVSS 2.0 | LOW 1.7 | AV:L/AC:L/Au:S/C:N/I:N/A:P | NVD · cna@vuldb.com (Secondary) |
Advisories
- GHSA-887c-mr87-cxwp — PyTorch Improper Resource Shutdown or Release vulnerability
- PYSEC-2026-1970 — PyTorch Improper Resource Shutdown or Release vulnerability
European references
- ENISA EUVD · EUVD-2025-11538
- GCVE · GCVE-0-2025-3730
CERT-FR advisories
- CERTFR-2026-AVI-0556 — Multiples vulnérabilités dans les produits VMware · cert.ssi.gouv.fr
- CERTFR-2025-AVI-0969 — Multiples vulnérabilités dans les produits VMware · cert.ssi.gouv.fr
Affected configurations (NVD CPE)
cpe:2.3:a:linuxfoundation:pytorch:2.6.0:-:*:*:*:python:*:*
Affected products
| Product | Versions |
|---|---|
| PyTorch | affected 2.6.0 |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| CERT-FR (ANSSI) | Licence Ouverte / Etalab 2.0 |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |