Bug 2361314 - CVE-2025-32434 python-torch: PyTorch: `torch.load` with `weights_only=True` leads to remote code execution [fedora-42]
Summary: CVE-2025-32434 python-torch: PyTorch: `torch.load` with `weights_only=True` l...
Keywords:
Status: CLOSED EOL
Alias: None
Product: Fedora
Classification: Fedora
Component: python-torch
Version: 42
Hardware: Unspecified
OS: Unspecified
urgent
urgent
Target Milestone: ---
Assignee: Tom.Rix
QA Contact:
URL:
Whiteboard: {"flaws": ["1163b22e-b73c-4c02-b8b4-0...
Depends On:
Blocks: CVE-2025-32434
TreeView+ depends on / blocked
 
Reported: 2025-04-21 03:36 UTC by Avinash Hanwate
Modified: 2026-06-08 16:56 UTC (History)
3 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed: 2026-06-08 16:56:34 UTC
Type: ---
Embargoed:


Attachments (Terms of Use)

Description Avinash Hanwate 2025-04-21 03:36:37 UTC
More information about this security flaw is available in the following bug:

https://bugzilla.redhat.com/show_bug.cgi?id=2360999

Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.

Comment 1 Alexander Lent 2025-12-25 01:40:16 UTC
The fixing commit is https://github.com/pytorch/pytorch/commit/8d4b8a920a2172523deb95bf20e8e52d50649c04

Comment 2 Alexander Lent 2025-12-25 01:57:00 UTC
The issue is that even when using the safe configuration of weights_only=True in torch.load, if a file in the legacy tar format is provided, the load process continues unsafely since legacy tar files can only be loaded unsafely. Oops. The fixing commit adds a check to prevent this from happening.

The fix is present in 2.6.0 and newer, so only Fedora 42 is both currently maintained and impacted.

Comment 3 Alexander Lent 2025-12-25 22:31:42 UTC
Proposed fix is in https://src.fedoraproject.org/rpms/python-torch/pull-request/8

Comment 4 Fedora Release Engineering 2026-05-06 12:40:46 UTC
This message is a reminder that Fedora Linux 42 is nearing its end of life.
Fedora will stop maintaining and issuing updates for Fedora Linux 42 on 2026-05-13.
It is Fedora's policy to close all bug reports from releases that are no longer
maintained. At that time this bug will be closed as EOL if it remains open with a
'version' of '42'.

Package Maintainer: If you wish for this bug to remain open because you
plan to fix it in a currently maintained version, change the 'version' 
to a later Fedora Linux version. Note that the version field may be hidden.
Click the "Show advanced fields" button if you do not see it.

Thank you for reporting this issue and we are sorry that we were not 
able to fix it before Fedora Linux 42 is end of life. If you would still like 
to see this bug fixed and are able to reproduce it against a later version 
of Fedora Linux, you are encouraged to change the 'version' to a later version
prior to this bug being closed.

Comment 5 Aoife Moloney 2026-06-08 16:56:34 UTC
Fedora Linux 42 entered end-of-life (EOL) status on 2026-05-27.

Fedora Linux 42 is no longer maintained, which means that it
will not receive any further security or bug fix updates. As a result we
are closing this bug.

If you can reproduce this bug against a currently maintained version of Fedora Linux
please feel free to reopen this bug against that version. Note that the version
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