CVE-2026-65819

Name	CVE-2026-65819
Description	gopacket provides packet processing capabilities for Go. Through version 1.7.0, multiple layer decoders use attacker-controlled lengths, counts, or offsets before validating them against packet buffers, allowing a crafted packet decoded through DecodingLayerParser or DecodeFromBytes to trigger an unrecovered panic and remotely deny service. A patch commit is available at 210f25f.
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
golang-github-gopacket-gopacket (PTS)	bookworm	1.0.0-1	vulnerable
	forky, sid, trixie	1.3.0-2	vulnerable
gopacket (PTS)	bullseye	1.1.19-1	vulnerable
	bookworm	1.1.19-3	vulnerable
	forky, sid, trixie	1.1.19-6.2	vulnerable

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

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
golang-github-gopacket-gopacket	source	(unstable)	(unfixed)
gopacket	source	(unstable)	(unfixed)

Notes

https://github.com/gopacket/gopacket/security/advisories/GHSA-8mcr-459q-5mx2
Fixed by: https://github.com/gopacket/gopacket/commit/210f25fb9b3ca1af2eb649936f78ad6991b6c9c5