Apache MINA SSHD 2.19, 3.0.0-M5 LDAP Auth Bypass
CVE-2026-94052 Published on September 30, 2026
Apache MINA SSHD: LDAP password authentication ineffective
A missing check in LdapPasswordAuthenticator in component sshd-ldap in Apache MINA SSHD versions 1.2.0 to 2.19.0 or 3.0.0-M1 to 3.0.0-M5 bypassed authentication checks.
Apache MINA SSHD is a Java library for client-side and server-side SSH. The optional sshd-ldap component provides support for integrating password and publickey authentication on the server side with an LDAP server.
sshd-ldap is an optional component. SSH servers implemented with Apache MINA SSHD are affected only if they use sshd-ldap and do configure an LdapPasswordAuthenticator to be used for password authentication. Normal password authentication via the built-in mechanisms in sshd-core is _not_ affected by this vulnerability, which concerns only LdapPasswordAuthenticator.
Users are recommended to upgrade affected applications to version 2.20.0 or 3.0.0-M6, which fix this issue.
Vulnerability Analysis
CVE-2026-94052 is exploitable with network access, and does not require authorization privileges or user interaction. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to have a high impact on confidentiality and integrity, and no impact on availability.
Weakness Type
Missing Critical Step in Authentication
The software implements an authentication technique, but it skips a step that weakens the technique. Authentication techniques should follow the algorithms that define them exactly, otherwise authentication can be bypassed or more easily subjected to brute force attacks.
Products Associated with CVE-2026-94052
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Affected Versions
Apache Software Foundation Apache MINA SSHD:- Version 1.2.0 and below 2.20.0 is affected.
- Version 3.0.0-M1 and below 3.0.0-M6 is affected.