CVE-2026-35414

Name	CVE-2026-35414
Description	OpenSSH before 10.3 mishandles the authorized_keys principals option in uncommon scenarios involving a principals list in conjunction with a Certificate Authority that makes certain use of comma characters.
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)
References	DLA-4584-1
Debian Bugs	1132576

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
openssh (PTS)	bookworm	1:9.2p1-2+deb12u10	fixed
	bookworm (security)	1:9.2p1-2+deb12u9	vulnerable
	trixie	1:10.0p1-7+deb13u4	fixed
	trixie (security)	1:10.0p1-7+deb13u2	vulnerable
	forky, sid	1:10.5p1-1	fixed

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

Package	Type	Release	Fixed Version	Origin	Debian Bugs
openssh	source	bullseye	1:8.4p1-5+deb11u7	DLA-4584-1
openssh	source	bookworm	1:9.2p1-2+deb12u10
openssh	source	trixie	1:10.0p1-7+deb13u3
openssh	source	(unstable)	1:10.3p1-1		1132576

https://www.openssh.org/releasenotes.html#10.3p1