CVE-2025-71382

Name	CVE-2025-71382
Description	MuPDF before 1.27.0-rc1 contains an uncontrolled recursion vulnerability in the EPUB CSS rendering engine that allows remote attackers to cause a denial of service by supplying a maliciously crafted EPUB file with deeply nested HTML elements and inline CSS styles. The function value_from_inheritable_property() in css-apply.c recurses through the CSS property inheritance chain without a depth limit, exhausting the process stack and causing a crash in any application using MuPDF for EPUB rendering.
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)

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
mupdf (PTS)	bullseye	1.17.0+ds1-2	vulnerable
	bullseye (security)	1.17.0+ds1-2+deb11u2	vulnerable
	bookworm, bookworm (security)	1.21.1+ds2-1+deb12u1	vulnerable
	trixie (security), trixie	1.25.1+ds1-6+deb13u1	vulnerable
	forky, sid	1.27.0+ds1-6	fixed

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

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
mupdf	source	(unstable)	1.27.0+ds1-2

Notes

[trixie] - mupdf <no-dsa> (Minor issue)
https://bugs.ghostscript.com/show_bug.cgi?id=708840
Fixed by: https://cgit.ghostscript.com/cgi-bin/cgit.cgi/mupdf.git/commit/?id=70b71ab22e6de4d4c44cd301c88231f623a4e94e (1.27.0-rc1)