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CVE-2026-4538— PyTorch pt2 Loading deserialization

Quick assessment

Affected
n/a PyTorch
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

PyTorch是PyTorch开源的一个 Python 包。 PyTorch 2.10.0版本存在代码问题漏洞，该漏洞源于pt2加载处理组件存在未知功能，可能导致反序列化攻击。

CVSS 5.3 · Medium EPSS 0.40% · P31
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I. Basic Information for CVE-2026-4538

Vulnerability Information
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Vulnerability Title
PyTorch pt2 Loading deserialization
Source: CVE Program / CVE List V5
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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
可信数据的反序列化
Source: CVE Program / CVE List V5
Vulnerability Title
PyTorch 代码问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
PyTorch是PyTorch开源的一个 Python 包。 PyTorch 2.10.0版本存在代码问题漏洞，该漏洞源于pt2加载处理组件存在未知功能，可能导致反序列化攻击。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

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Affected Products

Vendor Product Affected Versions CPE Subscribe
- PyTorch 2.10.0 -

II. Public POCs for CVE-2026-4538

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III. Intelligence Information for CVE-2026-4538

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Patches & Fixes for CVE-2026-4538 (1)

Vendor Advisories for CVE-2026-4538 (2)

Vendor Pages for CVE-2026-4538 (1)

Same Patch Batch · n/a · 2026-03-22 · 7 CVEs total

CVE-2026-4562 7.3 HIGH MacCMS Timming API Endpoint Timming.php weak authentication
CVE-2026-4542 5.4 MEDIUM SSCMS layerImage Endpoint LayerImageController.Submit.cs path traversal
CVE-2026-4531 5.3 MEDIUM Free5GC AMF handler.go HandleRegistrationComplete denial of service
CVE-2026-4563 4.3 MEDIUM MacCMS Member Order Detail User.php order_info authorization
CVE-2026-4115 3.7 LOW PuTTY Ed25519 Signature ecc-ssh.c eddsa_verify signature verification
CVE-2026-4539 3.3 LOW pygments archetype.py AdlLexer redos

IV. Related Vulnerabilities

Same product: PyTorch
Same vendor: n/a
Same weakness: CWE-502

V. Comments for CVE-2026-4538

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