CVE-2026-75818

Name	CVE-2026-75818
Description	GNU Aspell prezip-bin contains a heap-based buffer overflow vulnerability in the decompressor in prog/prezip.c. The decompressor does not properly check buffer space, so a crafted compressed file can cause out-of-bounds read and write operations on the heap. An attacker who convinces a user to process a malicious compressed file with prezip-bin can trigger memory corruption, leading to a processs crash. This issue was fixed in commit 15b188437f9e0192d4ac4472ad66a4e2f62a782f which will be released in version 0.60.8.3.
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	1150460

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
aspell (PTS)	bookworm	0.60.8-4	vulnerable
	trixie	0.60.8.1-4	vulnerable
	forky, sid	0.60.8.2-3	vulnerable

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

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
aspell	source	(unstable)	(unfixed)			1150460

Notes

[trixie] - aspell <no-dsa> (Minor issue)
[bookworm] - aspell <postponed> (Minor issue)
https://cert.pl/en/posts/2026/10/CVE-2026-75818
Fixed by: https://github.com/GNUAspell/aspell/commit/15b188437f9e0192d4ac4472ad66a4e2f62a782f