{"id":"CVE-2026-63270","aliases":["BELL-CVE-2026-63270","DEBIAN-CVE-2026-63270","EUVD-2026-92421","GHSA-p537-j8hg-x628","MGASA-2026-0514","UBUNTU-CVE-2026-63270"],"status":"published","title":"Environment/ini-file leaks","description":"URLs could be constructed which expanded environment variable or INI file values, so potentially sensitive information could be exfiltrated to a remote server on opening a document containing such links. The check added for CVE-2024-12426 did not cover every place a document can supply a URL. XForms instance data and the Calc csv and sql data providers still reached the expansion. In fixed versions these places refuse URLs with internal schemes when the URL comes from the document.","severity":{"version":"4.0","score":6.7,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:P/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.00116,"percentile":0.01621,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-200"],"published":"2026-10-05T11:17:24Z","modified":"2026-11-04T07:16:11Z","fixes":[{"ecosystem":"Alpaquita:23","package":"libreoffice-headless","fixed_in":["7.6.7.2-r2"],"sources":["osv"]},{"ecosystem":"Alpaquita:25","package":"libreoffice-headless","fixed_in":["25.2.5.2-r1"],"sources":["osv"]},{"ecosystem":"Alpaquita:stream","package":"libreoffice-headless","fixed_in":["25.8.7.3-r5"],"sources":["osv"]},{"ecosystem":"Debian:13","package":"libreoffice","fixed_in":["4:25.2.3-2+deb13u8"],"sources":["osv"]},{"ecosystem":"Debian:14","package":"libreoffice","fixed_in":["4:26.2.5.2-1"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Alpaquita:23","package":"libreoffice-headless","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"7.6.3.2-r3"},{"fixed":"7.6.7.2-r2"}]}]},{"source":"osv","ecosystem":"Alpaquita:25","package":"libreoffice-headless","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"25.2.3.2-r0"},{"fixed":"25.2.5.2-r1"}]}]},{"source":"osv","ecosystem":"Alpaquita:stream","package":"libreoffice-headless","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"7.6.4.1-r1"},{"fixed":"25.8.7.3-r5"}]}]},{"source":"osv","ecosystem":"Debian:12","package":"libreoffice","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4:24.2.0-1","4:24.2.0-1~bpo12+1","4:24.2.0-2","4:24.2.0-3","4:24.2.0~alpha1-1","4:24.2.0~beta1-1","4:24.2.0~rc1-1","4:24.2.0~rc1-2","4:24.2.0~rc2-1","4:24.2.0~rc2-2","4:24.2.0~rc2-2~bpo12+1","4:24.2.1-1","4:24.2.1-2","4:24.2.1-3","4:24.2.1-4","4:24.2.1~rc1-1","4:24.2.1~rc2-1","4:24.2.2-1","4:24.2.2-2","4:24.2.2-3","4:24.2.2~rc1-1","4:24.2.2~rc1-2","4:24.2.2~rc2-1","4:24.2.2~rc2-2","4:24.2.3-1","4:24.2.3-1~bpo12+1","4:24.2.3-2","4:24.2.3~rc1-1","4:24.2.3~rc1-2","4:24.2.3~rc1-3","4:24.2.3~rc2-1","4:24.2.4-1","4:24.2.4-1~bpo12+1","4:24.2.5-1","4:24.2.5-1~bpo12+1","4:24.2.5-2","4:24.2.5-3","4:24.2.5-4","4:24.2.6-1","4:24.2.6-2","4:24.2.6-2~bpo12+1","4:24.8.0~alpha1-1","4:24.8.0~alpha1-2","4:24.8.0~alpha1-3","4:24.8.0~alpha1-4","4:24.8.0~beta1-1","4:24.8.0~rc1-1","4:24.8.0~rc2-1","4:24.8.0~rc3-1","4:24.8.0~rc3-2","4:24.8.1-1","4:24.8.1-2","4:24.8.1~rc1-1","4:24.8.2-1","4:24.8.2-1~bpo12+1","4:24.8.2-2","4:24.8.2~rc1-1","4:24.8.3-1","4:24.8.3-1~bpo12+1","4:24.8.3-2","4:24.8.3-3","4:24.8.4-1","4:24.8.4-1~bpo12+1","4:24.8.4-2","4:24.8.4-3","4:24.8.4-4","4:24.8.5-1","4:24.8.5-2","4:24.8.5-2~bpo12+1","4:24.8.5-2~bpo12+2","4:25.2.0~alpha1-1","4:25.2.0~beta1-1","4:25.2.0~beta1-2","4:25.2.0~rc1-1","4:25.2.0~rc1-2","4:25.2.0~rc1-3","4:25.2.0~rc1-4","4:25.2.0~rc2-1","4:25.2.0~rc3-1","4:25.2.0~rc3-2","4:25.2.1-1","4:25.2.1-2","4:25.2.1-3","4:25.2.1-3~bpo12+1","4:25.2.1~rc1-1","4:25.2.1~rc1-2","4:25.2.1~rc2-1","4:25.2.2-1","4:25.2.2-1~bpo12+1","4:25.2.2-2","4:25.2.2-3","4:25.2.2-3~bpo12+1","4:25.2.2~rc1-1","4:25.2.2~rc2-1","4:25.2.3-1","4:25.2.3-2","4:25.2.3-2~bpo12+1","4:25.2.3~rc1-1","4:25.2.3~rc1-2","4:25.2.3~rc2-1","4:25.8.0-1","4:25.8.0-1~bpo13+1","4:25.8.0~alpha1-1","4:25.8.0~alpha1-2","4:25.8.0~beta1-1","4:25.8.0~rc1-1","4:25.8.0~rc1-2","4:25.8.0~rc2-1","4:25.8.0~rc2-2","4:25.8.0~rc3-1","4:25.8.0~rc4-1","4:25.8.0~rc4-2","4:25.8.1-1","4:25.8.1-1~bpo13+1","4:25.8.1~rc1-1","4:25.8.2-1","4:25.8.2-2","4:25.8.2-3","4:25.8.2-3~bpo13+1","4:25.8.2~rc1-1","4:25.8.2~rc2-1","4:25.8.3-1","4:25.8.3-1+ports","4:25.8.3-1~bpo13+1","4:25.8.3~rc1-1","4:25.8.3~rc2-1","4:25.8.4-1","4:25.8.4-1~bpo13+1","4:26.2.0-1","4:26.2.0-1~bpo13+1","4:26.2.0~alpha1-1","4:26.2.0~alpha1-2","4:26.2.0~alpha1-3","4:26.2.0~beta1-1","4:26.2.0~rc1-1","4:26.2.0~rc2-1","4:26.2.0~rc3-1","4:26.2.1-1","4:26.2.1-1~bpo13+1","4:26.2.1~rc1-1","4:26.2.1~rc2-1","4:26.2.2.1-1","4:26.2.2.1-2","4:26.2.2.2-1","4:26.2.2.2-2","4:26.2.2.2-3","4:26.2.2.2-3~bpo13+1","4:26.2.3.1-1","4:26.2.3.2-1","4:26.2.3.2-2","4:26.2.3.2-2~bpo13+1","4:26.2.4.1-1","4:26.2.4.2-1","4:26.2.4.2-1~bpo13+1","4:26.2.4.2-2","4:26.2.5.2-1","4:26.2.5.2-2","4:26.2.5.2-2~bpo13+1","4:26.8.0.0.alpha1-1","4:26.8.0.0.alpha1-2","4:26.8.0.0.alpha1-3","4:26.8.0.0.alpha1-4","4:26.8.0.0.beta1-1","4:26.8.0.1-1","4:26.8.0.2-1","4:26.8.0.3-1","4:26.8.0.3-2","4:26.8.0.3-2~bpo13+1","4:26.8.1.1-1","4:26.8.1.1-2","4:26.8.1.1-3","4:7.4.5-3","4:7.4.7-1","4:7.4.7-1+deb12u1","4:7.4.7-1+deb12u10","4:7.4.7-1+deb12u11","4:7.4.7-1+deb12u12","4:7.4.7-1+deb12u13","4:7.4.7-1+deb12u14","4:7.4.7-1+deb12u1~bpo11+1","4:7.4.7-1+deb12u2","4:7.4.7-1+deb12u2~bpo11+1","4:7.4.7-1+deb12u3","4:7.4.7-1+deb12u4","4:7.4.7-1+deb12u5","4:7.4.7-1+deb12u6","4:7.4.7-1+deb12u7","4:7.4.7-1+deb12u8","4:7.4.7-1+deb12u9","4:7.4.7-1~bpo11+1","4:7.5.0~rc2-7","4:7.5.0~rc3-1","4:7.5.1~rc1-1","4:7.5.1~rc2-1","4:7.5.2~rc1-1","4:7.5.2~rc2-1","4:7.5.3~rc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leaks","description":"URLs could be constructed which expanded environment variable or INI file values, so potentially sensitive information could be exfiltrated to a remote server on opening a document containing such links. The check added for CVE-2024-12426 did not cover every place a document can supply a URL. XForms instance data and the Calc csv and sql data providers still reached the expansion. In fixed versions these places refuse URLs with internal schemes when the URL comes from the document.","status":"published","published":"2026-10-05T11:17:24.38Z","modified":"2026-10-05T12:40:16.322Z","cvss":[{"version":"4.0","score":6.7,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:P/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N","level":"medium","assessor":"cna"}],"cwes":["CWE-200"],"updated_at":"2026-11-02T14:19:56.284359Z"}],"euvd":[{"id":"EUVD-2026-92421","description":"URLs could be constructed which expanded environment variable or INI file values, so potentially sensitive information could be exfiltrated to a remote server on opening a document containing such links. The check added for CVE-2024-12426 did not cover every place a document can supply a URL. XForms instance data and the Calc csv and sql data providers still reached the expansion. In fixed versions these places refuse URLs with internal schemes when the URL comes from the document.","status":"published","published":"2026-10-05T11:17:24Z","modified":"2026-10-05T12:40:16Z","cvss":[{"version":"4.0","score":6.7,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:P/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N","level":"medium"}],"updated_at":"2026-11-02T17:27:40.198021Z"}],"ghsa":[{"id":"GHSA-p537-j8hg-x628","title":"URLs could be constructed which expanded environment variable or INI file values, so potentially...","description":"URLs could be constructed which expanded environment variable or INI file values, so potentially sensitive information could be exfiltrated to a remote server on opening a document containing such links. The check added for CVE-2024-12426 did not cover every place a document can supply a URL. XForms instance data and the Calc csv and sql data providers still reached the expansion. In fixed versions these places refuse URLs with internal schemes when the URL comes from the document.","status":"published","published":"2026-10-05T12:31:28Z","modified":"2026-10-05T12:31:34Z","cvss":[{"version":"4.0","score":6.7,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:P/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"medium"}],"cwes":["CWE-200"],"updated_at":"2026-11-02T15:12:48.068686Z"}],"nvd":[{"id":"CVE-2026-63270","description":"URLs could be constructed which expanded environment variable or INI file values, so potentially sensitive information could be exfiltrated to a remote server on opening a document containing such links. The check added for CVE-2024-12426 did not cover every place a document can supply a URL. XForms instance data and the Calc csv and sql data providers still reached the expansion. In fixed versions these places refuse URLs with internal schemes when the URL comes from the document.","status":"published","published":"2026-10-05T12:17:11.113Z","modified":"2026-10-06T15:03:59.427Z","cvss":[{"version":"4.0","score":6.7,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:P/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"medium","assessor":"secondary"}],"cwes":["CWE-200"],"updated_at":"2026-11-02T14:12:53.75133Z"}],"osv":[{"id":"DEBIAN-CVE-2026-63270","description":"URLs could be constructed which expanded environment variable or INI file values, so potentially sensitive information could be exfiltrated to a remote server on opening a document containing such links. The check added for CVE-2024-12426 did not cover every place a document can supply a URL. XForms instance data and the Calc csv and sql data providers still reached the expansion. In fixed versions these places refuse URLs with internal schemes when the URL comes from the document.","status":"published","published":"2026-10-05T12:17:11.113Z","modified":"2026-10-07T09:47:33.912918422Z","cvss":[{"version":"4.0","score":6.7,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:P/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"medium"}],"updated_at":"2026-11-02T15:45:57.932517Z"},{"id":"UBUNTU-CVE-2026-63270","description":"URLs could be constructed which expanded environment variable or INI file values, so potentially sensitive information could be exfiltrated to a remote server on opening a document containing such links. The check added for CVE-2024-12426 did not cover every place a document can supply a URL. XForms instance data and the Calc csv and sql data providers still reached the expansion. In fixed versions these places refuse URLs with internal schemes when the URL comes from the document.","status":"published","published":"2026-10-05T12:17:00Z","modified":"2026-10-17T13:00:31.916197836Z","cvss":[{"version":"4.0","score":6.7,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:P/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N","level":"medium"}],"updated_at":"2026-11-02T16:56:43.630667Z"},{"id":"BELL-CVE-2026-63270","status":"published","published":"2026-10-07T06:05:20.598318Z","modified":"2026-11-04T07:16:11.44823035Z","updated_at":"2026-11-04T07:31:49.594962Z"},{"id":"MGASA-2026-0514","title":"Updated libreoffice package fixes security vulnerabilities","description":"Arbitrary file write via calcext:data-mappings, sql provider and\nFirebird backup functionality. (CVE-2026-63266)\nLFI and GET SSRF via calcext:data-mappings and csv provider.\n(CVE-2026-63267)\nLFI via calcext:data-mappings, sql provider and sdbc:flat:file:// db\nhref. (CVE-2026-63268)\nLFI and GET SSRF via GStreamer and HLS playlists. (CVE-2026-63269)\nEnvironment/ini-file leaks. (CVE-2026-63270)\nHeap buffer overflow in WMF text record import. (CVE-2026-63272)\nHeap buffer overflow in PDF import encryption handling. (CVE-2026-63273)\nHeap buffer overflow in PDF import stream handling. (CVE-2026-63274)\nStack buffer overflow in CFF font hint handling. (CVE-2026-63275)\nStack buffer overflow in CFF to Type 1 font conversion. (CVE-2026-63276)\nRCE via calcext:data-mappings, sql provider and jdbc connector.\n(CVE-2026-63277)\nPackage URLs can be used to exfiltrate arbitrary INI file values and\nenvironment variables. (CVE-2026-63278)\nOut of bounds read in PICT image import. (CVE-2026-63279)\n","status":"published","published":"2026-10-17T03:21:49Z","modified":"2026-10-17T03:30:03.784898295Z","updated_at":"2026-11-02T15:49:43.795591Z"}]}}