CVE-2026-89088

Name	CVE-2026-89088
Description	A flaw was found in parted. A heap-based buffer overflow exists in libparted's file system resizing logic when handling FAT16 volumes. By convincing a user or administrator to resize a specially crafted FAT16 file system image with malformed directory metadata, an attacker can trigger an oversized read into a fixed-size memory buffer. This issue causes memory corruption, resulting in an application crash and a denial of service (DoS).
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	1148169

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
parted (PTS)	bookworm	3.5-3	vulnerable
	trixie	3.6-5	vulnerable
	forky, sid	3.8-2	fixed

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

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
parted	source	(unstable)	3.8-2			1148169

Notes

[trixie] - parted <no-dsa> (Minor issue)
https://alioth-lists.debian.net/pipermail/parted-devel/2026-September/006032.html
Fixed by: https://gitweb.git.savannah.gnu.org/gitweb/?p=parted.git;a=commit;h=73301c6915781c2eee66d0b1cc9d41a70bf901d6 (v3.7.13)