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Public proof of conceptAwaiting NVD analysis

CVE-2026-123974

pytorch/serve: Local privilege escalation through insecure temporary path

A public proof of concept exists; no exploitation attested.

  • Published2026-11-06
  • WeaknessCWE-379

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

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.

Timeline

dates in UTC
  1. 2026-11-0619:52CVE publishedCNA

Versions per branch

Products declared by the CNA

As Akrites, the CNA that assigned this CVE, declared them in the CVE record; versions as written. NVD lists no product for this CVE yet: this is the only product data so far.

Source: the CNA record (CVE Program), © The MITRE Corporation,CVE Terms of UseCVE recordupdated 2026-11-06

Neither OSV.dev nor the vendor advisories we read list affected versions for CVE-2026-123974 yet.

Full record on NVD

Fix

No fix published by the sources we read yet. NVD record

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof of concept
Metasploit modules
none listed
Metasploit Framework

Sources

  • NVDCVE recordread 2026-11-06
  • CISA-ADPSSVC decisionpoc2026-11-06
  • CNACVSS 3.17.82026-11-06
  • CNAweakness (CWE)CWE-3792026-11-06

Technical details

CVSS v3 Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Published
2026-11-06
Last Modified
2026-11-06
NVD status
Received

Frequently asked questions

What is CVE-2026-123974?

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.

Is CVE-2026-123974 actively exploited?

A proof-of-concept exploit exists for CVE-2026-123974, but active exploitation has not been confirmed at this time.

What is the CVSS score for CVE-2026-123974?

CVE-2026-123974 has a CVSS v3 base score of 7.8 (HIGH severity), with vector string CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

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