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Affected Component
Analysis
openssh
Exploitable
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.
CWEs
Published Date
Updated Date
Workaround
-
Advisories
https://marc.info/?l=openssh-unix-dev&m=177513443901484&w=2Third Party Advisory
https://www.openssh.org/releasenotes.html#10.3p1Release Notes
https://www.openwall.com/lists/oss-security/2026/04/02/3Third Party Advisory
Analysis#
Vulnerability Ratings#
3.6
CVSSv31
8.1
CVSSv31
NaN
other
Others affected components#
Resolved with patches#
openssh (buildroot:2025.02.x)
#
Title
Author
Resolve
1
upstream: apply the same validity rules to usernames and hostnames
"djm@openbsd.org" <djm@openbsd.org>
CVE-2026-35386
2
upstream: move username validity check for usernames specified on
"djm@openbsd.org" <djm@openbsd.org>
CVE-2026-35386
3
upstream: adapt to username validity check change
"djm@openbsd.org" <djm@openbsd.org>
CVE-2026-35386