Description
In all versions of PyTorch's TorchServe, a predictable extraction directory in /tmp lets a local user swap the model handler and run code as the TorchServe service account leading to local privilege escalation.
Published: 2026-11-06
Score: 7.8 High
EPSS: n/a
KEV: No
AI Analysis

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Remediation

Vendor Solution

The project is archived and currently no permanent solution is scheduled for release. See workaround section.

Vendor Workaround

Three independent fixes: * Set TEMP (or pass -Djava.io.tmpdir) to a directory the service account owns and that is not world-writable. * Harden the systemd unit with PrivateTmp=yes, so /tmp is namespaced per service. * At the code level, extract into a directory owned by the service account and refuse to reuse a pre-existing extraction root that the service does not own, instead of forceMkdir-ing into whatever is already there.

Tracking

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Advisories

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History

Fri, 06 Nov 2026 20:00:00 +0000

Type Values Removed Values Added
Description In all versions of PyTorch's TorchServe, a predictable extraction directory in /tmp lets a local user swap the model handler and run code as the TorchServe service account leading to local privilege escalation.
Title pytorch/serve: Local privilege escalation through insecure temporary path
Weaknesses CWE-379
References
Metrics cvssV3_1

{'score': 7.8, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'}

Subscriptions

No data.

cve-icon MITRE

Status: PUBLISHED

Assigner: Akrites

Published:

Updated: 2026-11-06T20:18:25.863Z

Reserved: 2026-11-06T17:53:03.966Z

Link: CVE-2026-123974

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-11-06T20:17:20.633

Modified: 2026-11-06T21:17:08.410

Link: CVE-2026-123974

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-11-06T21:45:10Z

Weaknesses