{"action":"Upgrade briefcase to 0.3.26 or later.","affected":[{"fixed":"0.3.26","introduced":"0.3.0"}],"component":"briefcase","cve_ids":["CVE-2026-33430"],"ecosystem":"PyPI","epss":0.00154,"exploited":false,"fixed_versions":["0.3.26"],"ghsa_id":"GHSA-r3r2-35v9-v238","id":"tcs_01M5KFX3BDY606DP4PHKBGNNGV","modified_at":"2026-06-05T14:30:11.172961403Z","published_at":"2026-03-23T21:40:10Z","references":["https://osv.dev/vulnerability/GHSA-r3r2-35v9-v238","https://github.com/beeware/briefcase/security/advisories/GHSA-r3r2-35v9-v238","https://nvd.nist.gov/vuln/detail/CVE-2026-33430","https://github.com/beeware/briefcase/issues/2759","https://github.com/beeware/briefcase-windows-VisualStudio-template/pull/85","https://github.com/beeware/briefcase-windows-app-template/pull/86","https://github.com/beeware/briefcase","https://github.com/pypa/advisory-database/tree/main/vulns/briefcase/PYSEC-2026-27.yaml"],"severity":{"label":"high","score":7.3},"sources":[{"source":"osv","source_id":"GHSA-r3r2-35v9-v238","url":"https://osv.dev/vulnerability/GHSA-r3r2-35v9-v238"}],"summary":"Briefcase: Windows MSI Installer Privilege Escalation via Insecure Directory Permissions"}