CVE catalog

CVE-2026-4538

Severity: Medium · CVSS 5.3CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
Published: Mar 22, 2026, 4:20:28 AM UTC
Source: [NVD] · [CVE record]
EPSS: 0.24% · Oct 25, 2026

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.

Vulnerable and fixed packages

Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.

Distribution	Package	Release	Version	Status
Debian	pytorch	sid	`2.14.1+dfsg-1`	vulnerable
Debian	pytorch	forky	`2.14.1+dfsg-1`	vulnerable
Debian	pytorch	trixie	`2.6.0+dfsg-7`	vulnerable
Debian	pytorch	bookworm	`1.13.1+dfsg-4`	vulnerable
Cpe	pytorch	Not reported	Not reported	vulnerable
PyPI	torch	Not reported	Not reported	unknown

Fixed-version evidence

Distribution	Package	Type	Release	Fixed version	Urgency	Origin	Bugs
Debian	pytorch	source	sid	`(unfixed)`	not yet assigned	Not reported	[1136002]
Debian	pytorch	source	forky	`(unfixed)`	not yet assigned	Not reported	[1136002]
Debian	pytorch	source	trixie	`(unfixed)`	not yet assigned	Not reported	[1136002]
Debian	pytorch	source	bookworm	`(unfixed)`	not yet assigned	Not reported	[1136002]

[Debian bug #1136002]

Notes

[trixie] pytorch: Minor issue [bookworm] pytorch: Minor issue

OpenFactory catalog packages

[Debian 12 (Bookworm)]

[libtorch1.13]Affected
Source package: [pytorch]
Details (2)
- 1.13.1+dfsg-4 · amd64 · bookworm
  Affected
  nvd · pytorch · debian · bookworm; nvd · pytorch · debian · 12
- 1.13.1+dfsg-4 · arm64 · bookworm
  Affected
  nvd · pytorch · debian · bookworm; nvd · pytorch · debian · 12
[libtorch-dev]Affected
Source package: [pytorch]
Details (2)
- 1.13.1+dfsg-4 · amd64 · bookworm
  Affected
  nvd · pytorch · debian · bookworm; nvd · pytorch · debian · 12
- 1.13.1+dfsg-4 · arm64 · bookworm
  Affected
  nvd · pytorch · debian · bookworm; nvd · pytorch · debian · 12
[libtorch-test]Affected
Source package: [pytorch]
Details (2)
- 1.13.1+dfsg-4 · amd64 · bookworm
  Affected
  nvd · pytorch · debian · bookworm; nvd · pytorch · debian · 12
- 1.13.1+dfsg-4 · arm64 · bookworm
  Affected
  nvd · pytorch · debian · bookworm; nvd · pytorch · debian · 12
[python3-torch]Affected
Source package: [pytorch]
Details (2)
- 1.13.1+dfsg-4 · amd64 · bookworm
  Affected
  nvd · pytorch · debian · bookworm; nvd · pytorch · debian · 12
- 1.13.1+dfsg-4 · arm64 · bookworm
  Affected
  nvd · pytorch · debian · bookworm; nvd · pytorch · debian · 12

[Debian 13 (Trixie)]

[libtorch2.6]Affected
Source package: [pytorch]
Details (2)
- 2.6.0+dfsg-7 · amd64 · trixie
  Affected
  nvd · pytorch · debian · 13
- 2.6.0+dfsg-7 · arm64 · trixie
  Affected
  nvd · pytorch · debian · 13
[libtorch-dev]Affected
Source package: [pytorch]
Details (2)
- 2.6.0+dfsg-7 · amd64 · trixie
  Affected
  nvd · pytorch · debian · 13
- 2.6.0+dfsg-7 · arm64 · trixie
  Affected
  nvd · pytorch · debian · 13
[libtorch-test]Affected
Source package: [pytorch]
Details (2)
- 2.6.0+dfsg-7 · amd64 · trixie
  Affected
  nvd · pytorch · debian · 13
- 2.6.0+dfsg-7 · arm64 · trixie
  Affected
  nvd · pytorch · debian · 13
[python3-torch]Affected
Source package: [pytorch]
Details (2)
- 2.6.0+dfsg-7 · amd64 · trixie
  Affected
  nvd · pytorch · debian · 13
- 2.6.0+dfsg-7 · arm64 · trixie
  Affected
  nvd · pytorch · debian · 13

Observed: Oct 23, 2026, 10:39:43 PM UTC

References

[CERT-Bund public advisories] · [Debian Security Tracker] · [FIRST EPSS] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX]