CVE-2026-88357

Name	CVE-2026-88357
Description	nDPI 5.1.0 contains a memory access issue in the DNS dissector and serializer deserialization code. Specially crafted network input can cause byte-buffer addresses at odd offsets to be cast to uint16_t or wider integer pointers and directly dereferenced without alignment checks. This results in undefined behavior and can cause process termination in UBSan-instrumented builds or on strict-alignment architectures, leading to denial of service.
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	1149051

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
ndpi (PTS)	bookworm	4.2-2	vulnerable
	forky, sid, trixie	4.2-2.1	vulnerable

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

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
ndpi	source	(unstable)	(unfixed)	unimportant		1149051

https://github.com/ntop/nDPI/issues/3213
https://github.com/ntop/nDPI/pull/3231
Negligible security impact