CVE-2026-110642

Name	CVE-2026-110642
Description	xhtml2pdf before 0.2.19 contains an OS command injection vulnerability in pisa.startViewer() that allows attackers to execute commands by interpolating unescaped file names into os.system. Attackers can supply an input file whose name contains a double quote and shell metacharacters, which runs OS commands as the invoking user when the pisa tool is used with -s/--start-viewer.
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)
Debian Bugs	1152196

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
xhtml2pdf (PTS)	bookworm	0.2.5-3	vulnerable
	forky, sid, trixie	0.2.17+dfsg-1	vulnerable

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

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
xhtml2pdf	source	(unstable)	(unfixed)	unimportant		1152196

Notes

https://github.com/xhtml2pdf/xhtml2pdf/commit/654f0de6ff4995eb058bfdf55dfa8ae4e4e3f154 (v0.2.21)
https://github.com/xhtml2pdf/xhtml2pdf/pull/835
Negligible security impact