Is there a public exploit for CVE-2026-4538?

No public exploit for CVE-2026-4538 was found in Exploit-DB, Metasploit, Nuclei templates or public proof-of-concept repositories. That is an absence of evidence rather than proof that none exists.

How severe is CVE-2026-4538?

CVE-2026-4538 scores CVSS 4.8 (v4.0), rated medium. EPSS puts the chance of exploitation in the next 30 days at 0.24%.

What does CVE-2026-4538 affect?

CVE-2026-4538 affects n/a PyTorch. It is part of the AI and agent stack (PyTorch).

4.8 Medium

A vulnerability was identified in PyTorch 2.10.0.

CVE-2026-4538

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.

Part of the AI stack

This affects PyTorch, in Runtimes & formats.

Assessment

CVSS: 4.8 (v4.0)
Severity: Medium
EPSS: 0.24% chance of exploitation in the next 30 days
Known exploited: Not listed in CISA KEV
Exploit availability: Nothing found in Exploit-DB, Metasploit, Nuclei or public PoC repositories
Published: 22 March 2026
Last updated: 17 June 2026
Affected: n/a · PyTorch
Weakness: CWE-20, CWE-502
Assigner: cna@vuldb.com

CVSS vectorCVSS: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

At the source

References

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