CVE-2026-35386

Name	CVE-2026-35386
Description	In OpenSSH before 10.3, command execution can occur via shell metacharacters in a username within a command line. This requires a scenario where the username on the command line is untrusted, and also requires a non-default configurations of % in ssh_config.
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	1132573

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	1:10.4p1-5	fixed
	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		1132573

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