CVE-2026-35386

Published Apr 2, 2026
·
Updated

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.

Affected Software

2 affected componentsFixes available
Microsoft azl3 openssh 9.8p1-5
Patch available
OpenBSD OpenSSH<10.3

Event History

Apr 2, 2026
CVE Published
via MITRE·04:44 PM
Data Sourced
via MITRE·04:44 PM
DescriptionSeverityWeakness
Data Sourced
via NVD·05:16 PM
DescriptionSeverityWeaknessAffected Software
Data Sourced
via Red Hat·06:02 PM
DescriptionSeverityAffected Software
Apr 4, 2026
Data Sourced
via Microsoft·08:02 AM
DescriptionSeverityWeaknessAffected Software
Updated
via Microsoft·08:02 AM
Severity
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Frequently Asked Questions

1

What is the severity of CVE-2026-35386?

CVE-2026-35386 is classified with a high severity due to the potential for command execution through untrusted usernames.

2

How do I fix CVE-2026-35386?

To mitigate CVE-2026-35386, upgrade to OpenSSH version 10.3 or later, which addresses this vulnerability.

3

Who is affected by CVE-2026-35386?

CVE-2026-35386 affects OpenSSH versions prior to 10.3, specifically configurations that allow untrusted usernames.

4

What causes CVE-2026-35386?

CVE-2026-35386 is caused by improper handling of shell metacharacters in usernames when using OpenSSH.

5

Is CVE-2026-35386 remotely exploitable?

Yes, CVE-2026-35386 can be remotely exploited if the conditions of untrusted usernames and specific ssh_config settings are met.

Company

Resources

Contact

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