CVE-2026-106443

Name	CVE-2026-106443
Description	WeasyPrint helps web developers to create PDF documents. Prior to 70.0, the image-loading path in weasyprint/images.py passes fetched image bytes from HTML img URLs, CSS image values, SVG image references, and data URIs to Pillow's generic image dispatcher without excluding EPS or PostScript formats. On hosts with Ghostscript installed, Pillow EpsImagePlugin invokes the interpreter for attacker-controlled PostScript, which can produce interpreter-permitted effects and can lead to remote code execution when the installed Ghostscript version has a usable sandbox bypass. Hosts without Ghostscript do not reach this rasterization path. This issue is fixed in version 70.0.
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	1150245

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
weasyprint (PTS)	bookworm	57.2-1	vulnerable
	trixie	62.3-1	vulnerable
	forky, sid	70.0-1	fixed

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

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
weasyprint	source	(unstable)	70.0-1	unimportant		1150245

Notes

https://github.com/Kozea/WeasyPrint/security/advisories/GHSA-r543-q48m-4c9j
Fixed by: https://github.com/Kozea/WeasyPrint/commit/39cd37ce1610bd890388e26591c569db1cbab542 (v70.0)
Not a security issue in weasyprint per se, just hardening against Ghostscript security issues
which are fixed in Debian anyway