CVE-2026-4538
PyTorch pt2 Loading deserialization
- State
- Published
- Severity
- 4.8 Medium
- Published
- Mar 22, 2026
- Updated
- Mar 23, 2026
- Reserved
- Mar 21, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 4.8 Medium | CVSS: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 | VulDB |
| 3.1 | 5.3 Medium | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R | VulDB |
| 3.0 | 5.3 Medium | CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R | VulDB |
| 2.0 | 4.3 Medium | AV:L/AC:L/Au:S/C:P/I:P/A:P/E:POC/RL:ND/RC:UR | VulDB |
Weaknesses
Affected Products
| Product | Versions |
|---|---|
PyTorchn/a |
|
References
- VDB-352326 | PyTorch pt2 Loading deserializationvdb-entry
- VDB-352326 | CTI Indicators (IOB, IOC)signaturepermissions-required
- Submit #774681 | pytorch PyTorch 2.10.0 Release deserializethird-party-advisory
- https://github.com/pytorch/pytorch/pull/176791exploitissue-trackingpatch
- https://github.com/pytorch/pytorch/product
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