CVE-2026-115943

Name	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 [>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.
Source	CVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
References	DSA-6627-1
Debian Bugs	1152516

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
libspreadsheet-xlsx-perl (PTS)	bookworm	0.17-1	vulnerable
	trixie	0.18-1	vulnerable
	trixie (security)	0.20-0+deb13u1	fixed
	forky, sid	0.20-1	fixed

The information below is based on the following data on fixed versions.

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
libspreadsheet-xlsx-perl	source	trixie	0.20-0+deb13u1		DSA-6627-1
libspreadsheet-xlsx-perl	source	(unstable)	0.20-1			1152516

Notes

https://lists.security.metacpan.org/cve-announce/msg/44746764/
Fixed by: https://github.com/asb-capfan/Spreadsheet-XLSX/commit/4416d2be9c253669c1916b72201ff36172ace227