CVE-2026-93653

Name	CVE-2026-93653
Description	A denial of service flaw was found in Poppler's Splash backend. A crafted PDF with tiling-pattern geometry approaching the int32 boundary can cause SplashOutputDev::tilingPatternFill to compute an attacker-controlled repeat count that drives an excessively long loop in the pattern-fill scanline routine, without a corresponding memory allocation. An attacker could exploit this by supplying a malicious PDF to an application that renders it via Poppler's Splash backend, causing the rendering process to consume 100% CPU for an attacker-controlled, extended duration.
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	1148398

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
poppler (PTS)	bookworm	22.12.0-2+deb12u2	vulnerable
	bookworm (security)	22.12.0-2+deb12u3	vulnerable
	trixie	25.03.0-5+deb13u4	vulnerable
	trixie (security)	25.03.0-5+deb13u3	vulnerable
	forky	26.07.0-2	vulnerable
	sid	26.07.0-3	vulnerable

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

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
poppler	source	(unstable)	(unfixed)			1148398

[trixie] - poppler <no-dsa> (Minor issue)
[bookworm] - poppler <postponed> (Minor issue)
https://bugzilla.redhat.com/show_bug.cgi?id=2537005