CVE-2026-119979

HighCVSS 8.8/10Last modified Oct 30, 2026

Description

LM Studio before 0.4.22+1 contains a path traversal vulnerability in the model downloader's resolveDownloadRequest that allows attackers to write files outside the models directory using backslash-separated traversal filenames. Attackers can trick users into downloading a crafted model repository that plants a plugin manifest.json, install-state.json and mcp-bridge-config.json, running an attacker-supplied Python payload on every launch.

Metrics

CVSS 3.1 8.8/10CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-22

Affected software

Source: the vendor's advisory (CNA). NVD analysis pending.

VendorProductVersions
Element LabsLM Studio< 0.4.22+1

References

Timeline

Published
Oct 30, 2026
Last modified
Oct 30, 2026
NVD status
Awaiting Analysis

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CVE-2026-119979: High severity, CVSS 8.8 | Vulnix