{"id":"CVE-2026-115943","aliases":["DEBIAN-CVE-2026-115943","EUVD-2026-113403","GHSA-h33r-pwjw-x33j","UBUNTU-CVE-2026-115943","openSUSE-SU-2026:12367-1"],"status":"published","title":"Spreadsheet::XLSX versions before 0.19 for Perl allow code execution via string eval of number format conditions in ExcelFmt","description":"Spreadsheet::XLSX versions before 0.19 for Perl allow code execution via string eval of number format conditions in ExcelFmt.\n\nWhen a number format has a condition such as [\u003e100], ExcelFmt chooses the format section by passing the condition and the cell value to a string eval. Both come from the workbook, and the eval runs while Spreadsheet::XLSX-\u003enew parses it.\n\nAn attacker who supplies an XLSX file can run arbitrary Perl code.","severity":{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"adp","from":"cve"},"epss":{"day":"2026-11-12","score":0.0061,"percentile":0.49734,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-95"],"published":"2026-10-29T21:37:40Z","modified":"2026-11-05T21:39:40Z","fixes":[{"ecosystem":"Debian:14","package":"libspreadsheet-xlsx-perl","fixed_in":["0.20-1"],"sources":["osv"]},{"ecosystem":"openSUSE:Tumbleweed","package":"perl-Spreadsheet-XLSX","fixed_in":["0.200.0-1.1"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Debian:12","package":"libspreadsheet-xlsx-perl","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.17-1","0.18-1","0.20-1"]},{"source":"osv","ecosystem":"Debian:13","package":"libspreadsheet-xlsx-perl","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.18-1","0.20-1"]},{"source":"osv","ecosystem":"Debian:14","package":"libspreadsheet-xlsx-perl","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.20-1"}]}],"versions":["0.18-1"]},{"source":"osv","ecosystem":"Ubuntu:16.04:LTS","package":"libspreadsheet-xlsx-perl","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.13-1","0.15-1"]},{"source":"osv","ecosystem":"Ubuntu:18.04:LTS","package":"libspreadsheet-xlsx-perl","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.15-1"]},{"source":"osv","ecosystem":"Ubuntu:20.04:LTS","package":"libspreadsheet-xlsx-perl","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.15-2"]},{"source":"osv","ecosystem":"Ubuntu:22.04:LTS","package":"libspreadsheet-xlsx-perl","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.15-2","0.16-1","0.17-1"]},{"source":"osv","ecosystem":"Ubuntu:24.04:LTS","package":"libspreadsheet-xlsx-perl","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.17-1"]},{"source":"osv","ecosystem":"Ubuntu:26.10","package":"libspreadsheet-xlsx-perl","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.18-1"]},{"source":"osv","ecosystem":"Ubuntu:26.04:LTS","package":"libspreadsheet-xlsx-perl","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.18-1"]},{"source":"osv","ecosystem":"openSUSE:Tumbleweed","package":"perl-Spreadsheet-XLSX","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.200.0-1.1"}]}]}],"references":[{"url":"https://metacpan.org/release/ASB/Spreadsheet-XLSX-0.19/changes","tags":["release-notes","report"]},{"url":"http://www.openwall.com/lists/oss-security/2026/10/30/3","tags":["report"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-115943"},{"url":"https://github.com/advisories/GHSA-h33r-pwjw-x33j"},{"url":"https://security-tracker.debian.org/tracker/CVE-2026-115943","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2026-115943","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-115943","tags":["report"]},{"url":"https://lists.security.metacpan.org/cve-announce/msg/44746764/","tags":["report"]},{"url":"","tags":["advisory"]},{"url":"https://www.suse.com/security/cve/CVE-2026-115943","tags":["web"]}],"sources":{"cve":[{"id":"CVE-2026-115943","title":"Spreadsheet::XLSX versions before 0.19 for Perl allow code execution via string eval of number format conditions in ExcelFmt","description":"Spreadsheet::XLSX versions before 0.19 for Perl allow code execution via string eval of number format conditions in ExcelFmt.\n\nWhen a number format has a condition such as [\u003e100], ExcelFmt chooses the format section by passing the condition and the cell value to a string eval. Both come from the workbook, and the eval runs while Spreadsheet::XLSX-\u003enew parses it.\n\nAn attacker who supplies an XLSX file can run arbitrary Perl code.","status":"published","published":"2026-10-29T21:37:40.697Z","modified":"2026-11-05T21:39:40.214Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"adp"}],"cwes":["CWE-95"],"updated_at":"2026-11-05T22:55:19.167207Z"}],"euvd":[{"id":"EUVD-2026-113403","description":"Spreadsheet::XLSX versions before 0.19 for Perl allow code execution via string eval of number format conditions in ExcelFmt.\n\nWhen a number format has a condition such as [\u003e100], ExcelFmt chooses the format section by passing the condition and the cell value to a string eval. Both come from the workbook, and the eval runs while Spreadsheet::XLSX-\u003enew parses it.\n\nAn attacker who supplies an XLSX file can run arbitrary Perl code.","status":"published","published":"2026-10-29T21:37:40Z","modified":"2026-11-05T21:39:40Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"updated_at":"2026-11-05T23:02:20.394374Z"}],"ghsa":[{"id":"GHSA-h33r-pwjw-x33j","title":"Spreadsheet::XLSX versions before 0.19 for Perl allow code execution via string eval of number...","description":"Spreadsheet::XLSX versions before 0.19 for Perl allow code execution via string eval of number format conditions in ExcelFmt.\n\nWhen a number format has a condition such as [\u003e100], ExcelFmt chooses the format section by passing the condition and the cell value to a string eval. Both come from the workbook, and the eval runs while Spreadsheet::XLSX-\u003enew parses it.\n\nAn attacker who supplies an XLSX file can run arbitrary Perl code.","status":"published","published":"2026-10-30T00:30:34Z","modified":"2026-11-06T00:32:39Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"cwes":["CWE-95"],"updated_at":"2026-11-06T00:57:25.690752Z"}],"nvd":[{"id":"CVE-2026-115943","description":"Spreadsheet::XLSX versions before 0.19 for Perl allow code execution via string eval of number format conditions in ExcelFmt.\n\nWhen a number format has a condition such as [\u003e100], ExcelFmt chooses the format section by passing the condition and the cell value to a string eval. Both come from the workbook, and the eval runs while Spreadsheet::XLSX-\u003enew parses it.\n\nAn attacker who supplies an XLSX file can run arbitrary Perl code.","status":"published","published":"2026-10-29T22:17:00.767Z","modified":"2026-11-05T22:17:48.15Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"secondary"}],"cwes":["CWE-95"],"updated_at":"2026-11-05T23:57:22.627849Z"}],"osv":[{"id":"DEBIAN-CVE-2026-115943","description":"Spreadsheet::XLSX versions before 0.19 for Perl allow code execution via string eval of number format conditions in ExcelFmt.  When a number format has a condition such as [\u003e100], ExcelFmt chooses the format section by passing the condition and the cell value to a string eval. Both come from the workbook, and the eval runs while Spreadsheet::XLSX-\u003enew parses it.  An attacker who supplies an XLSX file can run arbitrary Perl code.","status":"published","published":"2026-10-29T22:17:00.767Z","modified":"2026-11-06T17:29:14.035268774Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"updated_at":"2026-11-06T18:00:26.717991Z"},{"id":"UBUNTU-CVE-2026-115943","description":"Spreadsheet::XLSX versions before 0.19 for Perl allow code execution via string eval of number format conditions in ExcelFmt. When a number format has a condition such as [\u003e100], ExcelFmt chooses the format section by passing the condition and the cell value to a string eval. Both come from the workbook, and the eval runs while Spreadsheet::XLSX-\u003enew parses it. An attacker who supplies an XLSX file can run arbitrary Perl code.","status":"published","published":"2026-10-29T22:17:00Z","modified":"2026-11-07T01:45:11.506905946Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"updated_at":"2026-11-07T01:57:06.567161Z"},{"id":"openSUSE-SU-2026:12367-1","title":"perl-Spreadsheet-XLSX-0.200.0-1.1 on GA media","description":"These are all security issues fixed in the perl-Spreadsheet-XLSX-0.200.0-1.1 package on the GA media of openSUSE Tumbleweed.","status":"published","published":"2026-10-30T00:00:00Z","modified":"2026-10-31T18:00:05.93200093Z","updated_at":"2026-11-02T16:58:41.463445Z"}]}}