CVE-2026-119979 LM Studio before 0.4.22+1 Path Traversal via Model Downloader

High 8.7 Published 30 Oct 2026 Updated 30 Oct 2026

Exploited in the wild: Not known
Fix: None listed

What is CVE-2026-119979?

CVE-2026-119979 is a high-severity vulnerability in Element Labs LM Studio, published on 30 Oct 2026.

Official 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.

Weakness: CWE-22

Which versions are affected by CVE-2026-119979?

How do I fix CVE-2026-119979?

No fix has been published for CVE-2026-119979 yet. Limit exposure of the affected software until one is available.

Is CVE-2026-119979 being exploited?

There is no known exploitation of CVE-2026-119979 in the wild and no public exploit code.

Sources

Also known as GHSA-fv7x-c662-7ccq.