CVE-2026-94053 Apache MINA SSHD: LDAP injection in sshd-ldap
Attackers can bypass authentication in Apache MINA SSHD servers using LDAP injection if the optional sshd-ldap component is configured.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-94053?
CVE-2026-94053 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
Authentication bypass via LDAP injection in component sshd-ldap in Apache MINA SSHD versions 1.2.0 to 2.19.0 and 3.0.0-M1 to 3.0.0-M5.
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 it to be used for password of public key authentication.
Other Apache MINA SSHD servers are not affected.
Lack of escaping LDAP filter metacharacters enabled successful authentication with username "*" and password "*".
Users are recommended to upgrade affected applications to version 2.20.0 or 3.0.0-M6, which fix this issue by properly escaping filter parameters according to RFC 4515.
Which versions are affected by CVE-2026-94053?
How do I fix CVE-2026-94053?
Upgrade to a fixed version.
Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.
Is CVE-2026-94053 being exploited?
There is no known exploitation of CVE-2026-94053 in the wild and no public exploit code.
Sources
Also known as DEBIAN-CVE-2026-94053, GHSA-qrc3-w53g-j8gv, UBUNTU-CVE-2026-94053.