CVE-2026-93994 Apache MINA SSHD - Authentication Bypass

Apache MINA SSHD <= 2.19.0 and 3.0.0-M1 to 3.0.0-M5 contains an authentication bypass caused by not enforcing distinct public keys in multi-authentication, letting attackers authenticate with a single key twice, exploit requires multi-authentication configuration.

CVSS base score 8.1 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Required
EPSS
0.32% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Authentication Bypass
Impact
Broken Authentication
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
Published
30 September 2026
Updated
15 October 2026
Weakness
CWE-304

Vendor fix

Upgrade to version 2.20.0 or 3.0.0-M6 or later.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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