CVE-2026-115943 Affecting libspreadsheet-xlsx-perl package, versions *
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-ECHOLATEST-LIBSPREADSHEETXLSXPERL-21884752
- published30 Oct 2026
- disclosed29 Oct 2026
Introduced: 29 Oct 2026
NewCVE-2026-115943 (opens in a new tab)How to fix?
There is no fixed version for Echo:latest libspreadsheet-xlsx-perl.
NVD Description
Note: Versions mentioned in the description apply only to the upstream libspreadsheet-xlsx-perl package and not the libspreadsheet-xlsx-perl package as distributed by Echo.
See How to fix? for Echo:latest relevant fixed versions and status.
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.