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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.

PUBLISHED Reserved 2026-03-21 | Published 2026-03-22 | Updated 2026-03-23 | Assigner VulDB




MEDIUM: 4.8CVSS: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
MEDIUM: 5.3CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R
MEDIUM: 5.3CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R
4.3AV:L/AC:L/Au:S/C:P/I:P/A:P/E:POC/RL:ND/RC:UR

Problem types

Deserialization

Improper Input Validation

Timeline

2026-03-21:Advisory disclosed
2026-03-21:VulDB entry created
2026-03-21:VulDB entry last update

Credits

ez-lbz (VulDB User) reporter

References

vuldb.com/?id.352326 (VDB-352326 | PyTorch pt2 Loading deserialization) vdb-entry

vuldb.com/?ctiid.352326 (VDB-352326 | CTI Indicators (IOB, IOC)) signature permissions-required

vuldb.com/?submit.774681 (Submit #774681 | pytorch PyTorch 2.10.0 Release deserialize) third-party-advisory

github.com/pytorch/pytorch/pull/176791 exploit issue-tracking patch

github.com/pytorch/pytorch/ product

cve.org (CVE-2026-4538)

nvd.nist.gov (CVE-2026-4538)

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