CVE-2026-107169

Name	CVE-2026-107169
Description	A flaw was found in m17n-lib. An attacker could provide specially crafted or truncated UTF-8 input to trigger an unhandled null pointer dereference during text processing. This issue causes the application to crash unexpectedly, resulting in 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	1150458

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
m17n-lib (PTS)	bookworm	1.8.0-6	vulnerable
	trixie	1.8.5-1	vulnerable
	forky, sid	1.8.7-1	vulnerable

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

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
m17n-lib	source	(unstable)	(unfixed)			1150458

[trixie] - m17n-lib <no-dsa> (Minor issue)
[bookworm] - m17n-lib <postponed> (Minor issue)
https://bugzilla.redhat.com/show_bug.cgi?id=2547410