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.

🔗 CVE IDs covered (1)

🎯 Affected products3

• azl3 openssh 9.8p1-5 on Azure Linux 3.0
• cbl2 openssh 8.9p1-9 on CBL Mariner 2.0
• cbl2 openssh 8.9p1-9 on CBL-Mariner 2.0

✅ Remediation

KBCBL-Mariner Releases (Security Update) — fixed build 9.8p1-6 KBRelease Notes (Security Update)

🔗 References (2)

• advisoryhttps://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-35386
• referencehttps://learn.microsoft.com/en-us/azure/azure-linux/tutorial-azure-linux-upgrade