CVE-2026-4538Improper Input Validation in Pytorch

Severity
4.8MEDIUMNVD
EPSS
0.0%
top 95.31%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
Timeline
PublishedMar 22

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.

CVSS vector

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

Affected Packages1 packages

🔴Vulnerability Details

2
OSV
CVE-2026-4538: A vulnerability was identified in PyTorch 22026-03-22
GHSA
GHSA-33x2-ppm4-v46v: A vulnerability was identified in PyTorch 22026-03-22

📋Vendor Advisories

2
Red Hat
pytorch: PyTorch: Deserialization vulnerability in pt2 Loading Handler allows local impact2026-03-22
Debian
CVE-2026-4538: pytorch - A vulnerability was identified in PyTorch 2.10.0. The affected element is an unk...2026

🕵️Threat Intelligence

1
Wiz
CVE-2026-4538 Impact, Exploitability, and Mitigation Steps | Wiz