CVE-2026-4538

PyTorch pt2 Loading deserialization

HIGH
7.8
CVSS Score
Published: March 22, 2026 at 04:20 AM UTC
Updated: June 17, 2026 at 10:56 AM UTC
1 product affected across 1 vendorPytorch

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Severity
HIGH7.8
Exploit prediction
EPSS 0.2%
SSVC
PoC

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

References (5)

VDB EntryThird Party Advisory
Source: cverecord
https://vuldb.com/?id.352326
SignaturePermissions RequiredVDB Entry
Source: cverecord
https://vuldb.com/?ctiid.352326
Third Party AdvisoryVDB Entry
Source: cverecord
https://vuldb.com/?submit.774681
ExploitIssue TrackingPatch
Source: cverecord
https://github.com/pytorch/pytorch/pull/176791
Product
Source: cverecord
https://github.com/pytorch/pytorch/

SSVC — Action Prioritization

SSVCPoCNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusANALYZED
CWE
CWE-502CWE-20

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