CVE-2026-56452

Path traversal in the sshd-scp component of Apache MINA SSHD. Apache MINA SSHD is a Java library for client-side and server-side SSH.<br /> <br /> <br /> <br /> <br /> The implementation of receiving files or directories via SCP did not validate filenames in SCP "C" or "D" commands. A malicious sender could send filenames containing paths, resulting in files to be written in attacker-controlled places.<br /> <br /> <br /> <br /> <br /> The issue affects only<br /> <br /> * applications that use no longer supported Apache MINA SSHD versions = 2.0.0 to receive files.<br /> <br /> <br /> <br /> <br /> Applications using Apache MINA SSHD &gt;= 2.0.0 not using sshd-scp are not affected.<br /> <br /> <br /> <br /> <br /> The issue is fixed in Apache MINA 2.19.0 and 3.0.0-M5. Affected applications are advised to upgrade to these versions.