CVE-2026-119979
LM Studio before 0.4.22+1 Path Traversal via Model Downloader
CVSS Score
8.8
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-22 |
| Vendor | element labs |
| Product | lm studio |
| Published | Oct 30, 2026 |
| Last Updated | Oct 30, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Affected Versions
Element Labs / LM Studio
0 < 0.4.22+1
References
Credits
Ariel Fogel of Pillar Security