CVE-2026-4538 — MEDIUM (5.3)

Vulnerability 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 Score

5.3

MEDIUM

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

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

LOW

Integrity

LOW

Availability

LOW

Affected Products

Vendor	Product	Versions
Linuxfoundation	Pytorch	2.10.0

Related Weaknesses (CWE)

CWE-20 CWE-502

References

https://github.com/pytorch/pytorch/Product
https://github.com/pytorch/pytorch/pull/176791Issue TrackingPatch
https://vuldb.com/?ctiid.352326Permissions RequiredVDB Entry
https://vuldb.com/?id.352326Third Party AdvisoryVDB Entry
https://vuldb.com/?submit.774681Third Party AdvisoryVDB Entry

FAQ

What is CVE-2026-4538?

CVE-2026-4538 is a vulnerability with a CVSS score of 5.3 (MEDIUM). 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 pe...

How severe is CVE-2026-4538?

CVE-2026-4538 has been rated MEDIUM with a CVSS base score of 5.3/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-4538?

Check the references section above for vendor advisories and patch information. Affected products include: Linuxfoundation Pytorch.