CVE-2026-56452: Apache Mina Sshd

High severity, CVSS 7.5. EPSS: 0.8% chance of exploitation in the next 30 days.

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. 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. The issue affects only * applications that use no longer supported Apache MINA SSHD versions < 2.0.0 and use the SCP functions to receive files, * or applications using sshd-scp in Apache MINA SSHD >= 2.0.0 to receive files. Applications using Apache MINA SSHD >= 2.0.0 not using sshd-scp are not affected. The issue is fixed in Apache MINA 2.19.0 and 3.0.0-M5. Affected applications are advised to upgrade to these versions.

Affected products

• Apache Mina Sshd: from 2.0.0, before 2.19.0 (fixed in 2.19.0); version 3.0.0 only

Published 2026-07-20. Last modified 2026-07-27.