CVE-2026-115943 Spreadsheet::XLSX versions before 0.19 for Perl allow code execution via string eval of number format conditions in ExcelFmt
CriticalCVSS 9.8
EPSS 0.61%
- Published
- Updated
- Exploit status
- No public exploit known
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 [>100], 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->new parses it.
An attacker who supplies an XLSX file can run arbitrary Perl code.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| cpan Spreadsheet-XLSX | < 0.19 | 0.19 |
| debian/libspreadsheet-xlsx-perl(Debian:12) | All versions | No fix listed |
| debian/libspreadsheet-xlsx-perl(Debian:12) | = 0.17-1 | No fix listed |
| debian/libspreadsheet-xlsx-perl(Debian:12) | = 0.18-1 | No fix listed |
| debian/libspreadsheet-xlsx-perl(Debian:12) | = 0.20-1 | No fix listed |
| debian/libspreadsheet-xlsx-perl(Debian:13) | All versions | No fix listed |
| debian/libspreadsheet-xlsx-perl(Debian:13) | = 0.18-1 | No fix listed |
| debian/libspreadsheet-xlsx-perl(Debian:13) | = 0.20-1 | No fix listed |
| debian/libspreadsheet-xlsx-perl(Debian:14) | < 0.20-1 | 0.20-1 |
| debian/libspreadsheet-xlsx-perl(Debian:14) | = 0.18-1 | No fix listed |
| ubuntu/libspreadsheet-xlsx-perl(Ubuntu:22.04) | All versions | No fix listed |
| ubuntu/libspreadsheet-xlsx-perl(Ubuntu:24.04) | All versions | No fix listed |
| ubuntu/libspreadsheet-xlsx-perl(Ubuntu:26.04) | All versions | No fix listed |
| ubuntu/libspreadsheet-xlsx-perl(Ubuntu:26.10) | All versions | No fix listed |
References
- Red Hat CVE page vendor-advisory
- Red Hat Bugzilla 2563716 issue-tracking
- www.cve.org
- nvd.nist.gov
- metacpan.org release-notes
- www.openwall.com
- Debian Security Tracker CVE-2026-115943 vendor-advisory
- Ubuntu CVE tracker vendor-advisory
- bugs.debian.org issue-tracking