{"action":"Upgrade nicegui to 3.10.0 or later.","affected":[{"fixed":"3.10.0","introduced":"0"}],"component":"nicegui","cve_ids":["CVE-2026-39844"],"ecosystem":"PyPI","epss":0.00385,"exploited":false,"fixed_versions":["3.10.0"],"ghsa_id":"GHSA-w8wv-vfpc-hw2w","id":"tcs_01M5KG1V3Y3115WGRYJR9SG7AP","modified_at":"2026-07-13T07:26:38.482689138Z","published_at":"2026-04-08T15:04:13Z","references":["https://osv.dev/vulnerability/GHSA-w8wv-vfpc-hw2w","https://github.com/zauberzeug/nicegui/security/advisories/GHSA-w8wv-vfpc-hw2w","https://nvd.nist.gov/vuln/detail/CVE-2026-39844","https://github.com/zauberzeug/nicegui/commit/d38a702e3af2da5b0708f689be8d71413fc77056","https://github.com/zauberzeug/nicegui","https://github.com/zauberzeug/nicegui/releases/tag/v3.10.0"],"severity":{"label":"medium","score":5.9},"sources":[{"source":"osv","source_id":"GHSA-w8wv-vfpc-hw2w","url":"https://osv.dev/vulnerability/GHSA-w8wv-vfpc-hw2w"}],"summary":"NiceGUI: Upload filename sanitization bypass via backslashes allows path traversal on Windows"}