CVE-2026-94052 Apache MINA SSHD: LDAP password authentication ineffective
Attackers can bypass authentication in Apache MINA SSHD servers using the optional LDAP password authenticator due to a missing check.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-94052?
CVE-2026-94052 is a critical authentication bypass vulnerability in Apache MINA SSHD, published on 30 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
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.
Weakness: CWE-304
Which versions are affected by CVE-2026-94052?
How do I fix CVE-2026-94052?
Upgrade to a fixed version.
Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.
Is CVE-2026-94052 being exploited?
There is no known exploitation of CVE-2026-94052 in the wild and no public exploit code.
Sources
Also known as DEBIAN-CVE-2026-94052, GHSA-wm5x-hv45-v2v6, UBUNTU-CVE-2026-94052.