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CVE-2026-59998

Medium

Description

sshd in OpenSSH before 10.4 has an undocumented security-relevant behavior: GSSAPIStrictAcceptorCheck has no value if the server is in Windows Active Directory.

SeverityMedium
CVSS4.8
Exploit probability—
ProductOpenbsd Openssh
PublishedJul 8, 2026
First seenJul 8, 2026
Weakness typeCWE-573CWE-573

How to fix

Update
  • openbsd openssh10.4 or later

Affected products

ProductAffected versionsFixed in
openbsd opensshv < 10.410.4

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