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. 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.

Score

CVSS 3.1 7.5 High

Status

Analyzed - security@apache.org

Published

2026-07-20

Last modified

2026-10-24

Weaknesses

CWE-22, CWE-73

Affected products

• Mina Sshd (Apache)
• Apache Mina Sshd (Apache Software Foundation)

References

• https://lists.apache.org/thread/xgoqvmksmd94fsqnzqjdtfjxf35os9no
• http://www.openwall.com/lists/oss-security/2026/07/20/15