Apache MINA SSHD vulnerabilities

The class org.apache.sshd.server.keyprovider.SimpleGeneratorHostKeyProvider in Apache MINA SSHD versions up to 2.9.1 uses Java deserialization to load a serialized java.security.PrivateKey. It is one of several implementations that can be used for loading the host keys of an SSH server.

Vulnerability in Apache MINA SSHD (sshd-git component) allows an authenticated SSH user to execute arbitrary JGit commands, including writing files to arbitrary locations via `git archive --output`.

Improper certificate validation in Apache MINA SSHD (server-side). The server did not check for force-command or verify-required options in OpenSSH certificates, allowing an authenticated user to execute other commands than specified. Fixed in versions 2.19.0 and 3.0.0-M5.

A path traversal vulnerability in the sshd-git component of Apache MINA SSHD on Windows allows an authenticated remote user to access git repositories outside the configured server root directory. The fix for CVE-2026-48827 was partially ineffective on Windows.

Path traversal vulnerability in the sshd-scp component of Apache MINA SSHD. A malicious sender can send filenames containing paths, allowing files to be written to arbitrary locations. Affects applications using SCP to receive files.

A path traversal vulnerability in Apache MINA SSHD bundle sshd-git. Lack of path validation in git operations allows authenticated SSH users to access git repositories outside the configured git server root directory.