{"schema":"threatline.record/2","record":{"id":"CVE-2026-63266","aliases":[],"summary":"Arbitrary file write via calcext:data-mappings, sql provider and Firebird backup functionality","details":"LibreOffice Calc can link a cell range to an external data source, and the link is saved in the document. Through such a link a document could open an embedded Firebird database that wrote a file to any location the user could write to. In fixed versions an embedded Firebird database can open or create files only inside its own private directory.","categories":["Unclassified"],"product":"LibreOffice","vendor":"The Document Foundation","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-63266","source_modified_at":"2026-10-05T12:42:53.493Z","fetched_at":"2026-10-23T18:52:38.922436Z","product":"LibreOffice","vendor":"The Document Foundation","versions":[{"status":"affected","version":"26.2","lessThan":"< 26.2.5","versionType":"26.2 series"}],"defaultStatus":"unknown"}],"fixed_versions":[],"cvss":6.8,"severity":"Medium","kev":{"listed":false},"epss":{"probability":0.00156,"percentile":0.04355,"score_date":"2026-10-23"},"published_at":"2026-10-05T11:17:21.513Z","modified_at":"2026-10-05T12:42:53.493Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-63266","fetched_at":"2026-10-23T18:52:38.922436Z","source_modified_at":"2026-10-05T12:42:53.493Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-63266","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23"}],"sources":["CVE List","EPSS"],"references":[{"source":"CVE List","url":"https://www.libreoffice.org/about-us/security/advisories/cve-2026-63266"}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","cvss_source":"CVE List","ssvc":{"exploitation":"none","automatable":"no","technical_impact":"partial","assessed_at":"2026-10-05T12:42:40.333248Z"},"classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":null,"confidence":"unknown","reviewed":false},"change_timestamp":"2026-10-05T12:42:53.493Z","content_hash":"92262442f02f2ebd60359be79872e34d0afb2fa26f1e3dd722b3fb1e8f794f11"}}