Bug 2454506 (CVE-2026-35386) - CVE-2026-35386 OpenSSH: OpenSSH: Arbitrary command execution via shell metacharacters in username
Summary: CVE-2026-35386 OpenSSH: OpenSSH: Arbitrary command execution via shell metach...
Keywords:
Status: NEW
Alias: CVE-2026-35386
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
low
low
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On: 2454961
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-04-02 18:02 UTC by OSIDB Bzimport
Modified: 2026-04-03 22:11 UTC (History)
5 users (show)

Fixed In Version:
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Description OSIDB Bzimport 2026-04-02 18:02:47 UTC 
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.
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