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.
CVSS Details
- CVSS 3.1 Base Score: 8.1
- CVSS 3.1 Vector: (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alma_linux | alma-upgrade-opensshalma-upgrade-openssh-askpassalma-upgrade-openssh-cavsalma-upgrade-openssh-clientsalma-upgrade-openssh-keycatalma-upgrade-openssh-ldapalma-upgrade-openssh-serveralma-upgrade-pam_ssh_agent_auth | May 5, 2026 | May 4, 2026 | |
| Amazon_linux_2023 | amazon-linux-2023-upgrade-opensshamazon-linux-2023-upgrade-openssh-clientsamazon-linux-2023-upgrade-openssh-clients-debuginfoamazon-linux-2023-upgrade-openssh-debuginfoamazon-linux-2023-upgrade-openssh-debugsourceamazon-linux-2023-upgrade-openssh-keycatamazon-linux-2023-upgrade-openssh-keycat-debuginfoamazon-linux-2023-upgrade-openssh-serveramazon-linux-2023-upgrade-openssh-server-debuginfoamazon-linux-2023-upgrade-pam-ssh-agent-authamazon-linux-2023-upgrade-pam-ssh-agent-auth-debuginfo | May 28, 2026 | Apr 2, 2026 | |
| Debian | debian-upgrade-openssh | May 17, 2026 | May 17, 2026 | |
| Ibm Aix | ibm-aix-openssh_advisory21 | May 31, 2026 | May 28, 2026 | |
| Nutanix Ahv | nutanix-ahv-upgrade-latest | Jul 2, 2026 | Jul 1, 2026 | |
| Openbsd Openssh | openbsd-openssh-upgrade-10_3 | Apr 28, 2026 | Apr 28, 2026 | |
| Oracle_linux | oracle-linux-upgrade-opensshoracle-linux-upgrade-openssh-askpassoracle-linux-upgrade-openssh-cavsoracle-linux-upgrade-openssh-clientsoracle-linux-upgrade-openssh-keycatoracle-linux-upgrade-openssh-keysignoracle-linux-upgrade-openssh-ldaporacle-linux-upgrade-openssh-serveroracle-linux-upgrade-pam-ssh-agent-auth | May 6, 2026 | Apr 2, 2026 | |
| Redhat_linux | redhat-upgrade-opensshredhat-upgrade-openssh-askpassredhat-upgrade-openssh-askpass-debuginforedhat-upgrade-openssh-cavsredhat-upgrade-openssh-cavs-debuginforedhat-upgrade-openssh-clientsredhat-upgrade-openssh-clients-debuginforedhat-upgrade-openssh-debuginforedhat-upgrade-openssh-debugsourceredhat-upgrade-openssh-keycatredhat-upgrade-openssh-keycat-debuginforedhat-upgrade-openssh-keysignredhat-upgrade-openssh-keysign-debuginforedhat-upgrade-openssh-ldapredhat-upgrade-openssh-ldap-debuginforedhat-upgrade-openssh-serverredhat-upgrade-openssh-server-debuginforedhat-upgrade-openssh-sk-dummy-debuginforedhat-upgrade-pam_ssh_agent_authredhat-upgrade-pam_ssh_agent_auth-debuginfo | May 4, 2026 | Apr 2, 2026 | |
| Rocky_linux | rocky-upgrade-opensshrocky-upgrade-openssh-askpassrocky-upgrade-openssh-askpass-debuginforocky-upgrade-openssh-cavsrocky-upgrade-openssh-cavs-debuginforocky-upgrade-openssh-clientsrocky-upgrade-openssh-clients-debuginforocky-upgrade-openssh-debuginforocky-upgrade-openssh-debugsourcerocky-upgrade-openssh-keycatrocky-upgrade-openssh-keycat-debuginforocky-upgrade-openssh-keysignrocky-upgrade-openssh-keysign-debuginforocky-upgrade-openssh-ldaprocky-upgrade-openssh-ldap-debuginforocky-upgrade-openssh-serverrocky-upgrade-openssh-server-debuginforocky-upgrade-pam_ssh_agent_authrocky-upgrade-pam_ssh_agent_auth-debuginfo | May 11, 2026 | May 6, 2026 | |
| Ubuntu | ubuntu-upgrade-openssh-clientubuntu-upgrade-openssh-server | Apr 29, 2026 | Apr 2, 2026 | |
| Vmware Photon_os | vmware-photon_os_update_tdnf | May 27, 2026 | Apr 2, 2026 |
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