Review reviewHigh

CVE-2026-56624

Apache Software Foundation Apache MINA SSHD, mina sshd

Improper certificate validation in Apache MINA SSHD (server-side). Apache MINA SSHD is a Java library for client-side and server-side SSH. Server-side OpenSSH user certificate validation during user authentication in an Apache MINA SSHD server did not check for the unsupported force-command or verify-required options that could be embedded in the certificate, nor did it validate these options. As a result it was possible that a user could authenticate with such a certificate that included a force-command option but still was able to execute other commands. What other command exactly would b...

CVSS: 7.3
EPSS: -
CISA KEV: Not listed
Published: 2026.07.21

PRIORITY ASSESSMENT

Review review

The CVSS severity warrants an early asset and exposure review.

Known exploitationNot established by KEV

Exploit probability-

Technical severityCVSS 7.3

Vulnerability overview

Affected product and versions

Product: Apache Software Foundation Apache MINA SSHD, mina sshd
Affected versions: >= 2.0.0 <= 2.18.0, >= 3.0.0-M1 <= 3.0.0-M4, >= 2.0.0 < 2.19.0, 3.0.0
Fixed versions: 2.19.0

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide

1
Identify
Confirm that Apache Software Foundation Apache MINA SSHD, mina sshd and an affected version are present.
2
Prioritize
Combine exploitation signals with asset exposure and business criticality.
3
Remediate
Follow the vendor advisory or supported update path and preserve rollback options.
4
Verify
Recheck the version, service health, access paths, and relevant logs.

Technical data

CVSS vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N
CWE: CWE-295