CVE-2026-107705

Name	CVE-2026-107705
Description	Poppler 0.42.0 through 26.10.0 contains a stack-based buffer overflow in Decrypt::revision6Hash() that allows attackers controlling the password to overwrite stack memory when opening AESV3/R6 encrypted PDFs. Attackers can supply a password longer than 127 bytes through applications using the libpoppler, libpoppler-glib or C++ API to overflow the K1 and E buffers, crashing the process or corrupting memory.
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
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)

https://gitlab.freedesktop.org/poppler/poppler/-/work_items/1814
https://gitlab.freedesktop.org/poppler/poppler/-/merge_requests/2398