vulntracker.iovulntracker.io
© 2026 vulntracker.io

CVE-2026-56624

Apache MINA SSHD: SSH certificate options lack validations

HIGH
7.3
CVSS Score
Published: July 20, 2026 at 08:28 PM UTC
Updated: October 24, 2026 at 08:10 PM UTC
1 product affected across 1 vendorMina Sshd

Using Apache MINA SSHD by Apache Software Foundation?

Get instant alerts when new vulnerabilities affect Apache MINA SSHD - before attackers find them.

Real-time alertsTrack your software stackFree plan available
Start FreeSign In
Severity
HIGH7.3
Exploit prediction
EPSS 0.3%
SSVC
No known exploit

Description

Improper certificate validation in Apache MINA SSHD (server-side). Apache MINA SSHD is a Java library for client-side and server-side SSH. Server-side OpenSSH user certificate validation during user authentication in an Apache MINA SSHD server did not check for the unsupported force-command or verify-required options that could be embedded in the certificate, nor did it validate these options. As a result it was possible that a user could authenticate with such a certificate that included a force-command option but still was able to execute other commands. What other command exactly would be available to the user depends on the implementation of the server. This issue is fixed in Apache MINA SSHD 2.19.0 and 3.0.0-M5. Applications are advised to upgrade to these versions. The fix rejects OpenSSH user certificates that include these options, since Apache MINA SSHD implements neither force-command nor sk-*[email protected] user certificates (which are the only ones for which verify-required would make sense).

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Mina Sshd· Apachemaven
95%
2.0.0 ≤ v < 2.19.02.0.03.0.03.0.0 m13.0.0 m23.0.0 m33.0.0 m43.0.0-M1
Affected range stops below 2.19.0, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (2)

Vendor AdvisoryMailing List
Source: cverecord
https://lists.apache.org/thread/o4c2jml522j3z80gbryqzc2f1253ltp6
Mailing ListThird Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
http://www.openwall.com/lists/oss-security/2026/07/20/17

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.3HIGHapache
Attack Vector
NETWORK
Complexity
LOW
Privileges
LOW
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
NONE
Vector?

Quick Info

StatusANALYZED
CWE
CWE-295

Get alerted

Stop reading CVE feeds looking for your own stack

Track the products you run and VulnTracker tells you when a new CVE affects them — with what is known about fixing it, and nothing about the rest.

Create accountSign in
Free plan, no card