High 8.1Published Sep 30, 2026

CVE-2026-93994Apache MINA SSHD: Repeated-publickey policy bypass on server

Updated under an hour ago (2026-10-19 08:23 UTC)

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It affects Apache Software Foundation Apache MINA SSHD. Add what you run to find out whether that includes you.

EPSS puts the chance of exploitation in the next 30 days at 0.32%, higher than 23% of scored CVEs.

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Every CVE for Apache Software Foundation Apache MINA SSHD

Exploited in the last 30 days

Apache MINA SSHD is a Java library for client-side and server-side SSH. SSH servers can be configured to require multi-authentication schemes, for instance two different public keys, not just one. In OpenSSH, this would be done by setting in sshd_config AuthenticationMethods "publickey,publickey". Apache MINA SSHD provides an equivalent configuration mechanism. In Apache MINA SSHD versions up to 2.19.0 and 3.0.0-M1 to 3.0.0-M5 the server code in component sshd-core does not enforce that the two public keys presented are different. A user can thus successfully authenticate with only one of the two key pairs required by presenting this single key twice. This is a partial authentication bypass. Users are recommended to upgrade to version 2.20.0 or 3.0.0-M6, which fix this issue.

CVSS: 8.1 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
Weakness (CWE): CWE-304
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): 0.32% (percentile 23)
Assigned by: apache
NVD analysis: Awaiting Analysis
Record last updated: Sep 30, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Apache Software Foundation Apache MINA SSHD apache_software_foundation:apache_mina_sshd (from the name)	before 2.20.0; from 3.0.0-M1 before 3.0.0-M6	CNA record

References

https://lists.apache.org/thread.html/9t3vsm8rnvwdv9779mlg1lq2fbwojdwpvendor-advisory
http://www.openwall.com/lists/oss-security/2026/09/29/33

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.