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.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Apache Software Foundation | Apache MINA SSHD | 1.2.0 – < 2.20.0, 3.0.0-M1 – < 3.0.0-M6 | 2.20.0 |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | libmina-sshd-java | 2.20.1-1 | — |
| Debian 13 | libmina-sshd-java | No fix yet | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.10 | mina2 | No fix yet | — |
| Ubuntu 20.04 LTS | mina2 | No fix yet | — |
| Ubuntu 18.04 LTS | mina2 | No fix yet | — |
| Ubuntu 16.04 LTS | mina2 | No fix yet | — |
Show 3 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 26.04 LTS | mina2 | No fix yet | — |
| Ubuntu Pro 24.04 LTS | mina2 | No fix yet | — |
| Ubuntu Pro 22.04 LTS | mina2 | No fix yet | — |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP7 | apache-sshd | 2.20.0-150200.5.19.1 | SUSE-SU-2026:4622-1 |
| SLES 15 SP6 | apache-sshd | 2.20.0-150200.5.19.1 | SUSE-SU-2026:4622-1 |
| SLES 15 SP5 | apache-sshd | 2.20.0-150200.5.19.1 | SUSE-SU-2026:4622-1 |
| SLES 15 SP4 | apache-sshd | 2.20.0-150200.5.19.1 | SUSE-SU-2026:4622-1 |
Show 5 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 15 SP6 | apache-sshd | 2.20.0-150200.5.19.1 | SUSE-SU-2026:4622-1 |
| SLES for SAP 15 SP5 | apache-sshd | 2.20.0-150200.5.19.1 | SUSE-SU-2026:4622-1 |
| SLES for SAP 15 SP4 | apache-sshd | 2.20.0-150200.5.19.1 | SUSE-SU-2026:4622-1 |
| SLE HPC 15 SP5 | apache-sshd | 2.20.0-150200.5.19.1 | SUSE-SU-2026:4622-1 |
| SLE HPC 15 SP4 | apache-sshd | 2.20.0-150200.5.19.1 | SUSE-SU-2026:4622-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | apache-sshd | 2.20.0-1.1 | openSUSE-SU-2026:11940-1 |
Advisories 2
- SUSE-SU-2026:4622-1 Security update for apache-sshd SUSE / openSUSE Security Updates · Oct 13, 2026
- openSUSE-SU-2026:11940-1 apache-sshd-2.20.0-1.1 on GA media SUSE / openSUSE Security Updates · Oct 2, 2026