{"id":"CVE-2026-119979","title":"LM Studio before 0.4.22+1 Path Traversal via Model Downloader","summary":"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…","severity":"high","cvss":8.8,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","cvssSource":"cna","cwe":["CWE-22"],"vendor":"Element Labs","product":"LM Studio","affected":["lm_studio < 0.4.22+1"],"ssvc":{"exploitation":"none","automatable":"yes","technicalImpact":"total","timestamp":"2026-10-30T18:28:34.449959Z"},"published":"2026-10-30","updated":"2026-10-30","sourceUpdated":"2026-10-30T18:34:20.363Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-119979","references":[{"url":"https://lmstudio.ai/changelog/lmstudio-v0.4.22","label":"LM Studio 0.4.22 Release Notes"},{"url":"https://www.vulncheck.com/advisories/lm-studio-before-0.4.22-1-path-traversal-via-model-downloader","label":"VulnCheck Advisory: LM Studio before 0.4.22+1 Path Traversal via Model Downloader"}],"tags":["cve.org"],"epss":0.00397,"epssPercentile":0.3419,"ingestedAt":"2026-11-05T16:24:31.327Z","slug":"CVE-2026-119979","body":"## Overview\n\nLM 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.\n\n## Affected\n\n- `lm_studio < 0.4.22+1`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":48,"depthScoreParts":{"impact":48.4,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}