CVE-2026-4538

Name: CVE-2026-4538
Creator: NVD / NIST
Published: 2026-03-22T05:16:20.273+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

LOWCVSS 1.9/10EPSS 0.24%

Last modified Jun 17, 2026

CVE-2026-4538 is a low-severity vulnerability rated 1.9/10 on the CVSS scale. A vulnerability was identified in PyTorch 2.10.0. The affected element is an unknown function of the component pt2 Loading Handler. EPSS estimates a 0.24% chance of exploitation in the next 30 days.

Description

A vulnerability was identified in PyTorch 2.10.0. The affected element is an unknown function of the component pt2 Loading Handler. The manipulation leads to deserialization. The attack can only be performed from a local environment. The exploit is publicly available and might be used. The project was informed of the problem early through a pull request but has not reacted yet.

Metrics

CVSS 3.1

7.8/10

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS 4.0

1.9/10

CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/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

EPSS Probability

0.24%

14.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Linuxfoundation	Pytorch	2.10.0

References

https://github.com/pytorch/pytorch/Product
https://github.com/pytorch/pytorch/pull/176791Issue Tracking, Patch
https://vuldb.com/?ctiid.352326Permissions Required, VDB Entry
https://vuldb.com/?id.352326Third Party Advisory, VDB Entry
https://vuldb.com/?submit.774681Third Party Advisory, VDB Entry

Timeline

Published: Mar 22, 2026
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2026-4538?

How severe is CVE-2026-4538?

CVE-2026-4538 has a CVSS score of 1.9/10 (LOW severity). The EPSS model estimates a 0.24% probability of exploitation in the next 30 days.

How do I fix CVE-2026-4538?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2026-4538?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST