Vulnerability · Published Sep 30, 2026 · Assigned by apache
CVE-2026-94052Apache MINA SSHD: LDAP password authentication ineffective
Critical 9.1
In plain English
A critical-severity security flaw in Apache MINA SSHD from Apache Software Foundation. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 31% of all known vulnerabilities).
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.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:13 | libmina-sshd-java | no fix listed | DEBIAN-CVE-2026-94052 |
| Debian:14 | libmina-sshd-java | no fix listed | DEBIAN-CVE-2026-94052 |
| Ubuntu:22.04:LTS | mina | no fix listed | UBUNTU-CVE-2026-94052 |
| Ubuntu:24.04:LTS | mina | no fix listed | UBUNTU-CVE-2026-94052 |
| Ubuntu:26.10 | mina2 | no fix listed | UBUNTU-CVE-2026-94052 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Apache Software Foundation | Apache MINA SSHD | 1.2.0 – before 2.20.03.0.0-M1 – before 3.0.0-M6 |
Weakness: CWE-304 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N