CVE-2026-8367

Name	CVE-2026-8367
Description	aria2c accepts a server certificate with incorrect Extended Key Usage (EKU). If the attackers compromise a certificate (with the associated private key) issued for a different purpose, they may be able to reuse it for TLS server authentication.
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
aria2 (PTS)	bullseye	1.35.0-3	vulnerable
	bookworm	1.36.0-1	vulnerable
	trixie	1.37.0+debian-3	vulnerable
	forky, sid	1.37.0+debian-4	vulnerable

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

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
aria2	source	(unstable)	(unfixed)

https://github.com/aria2/aria2/issues/2355