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.
Published: 2026-07-08
Score: 4.8 Medium
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories

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History

Wed, 08 Jul 2026 14:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Wed, 08 Jul 2026 12:15:00 +0000

Type Values Removed Values Added
Title openssh: OpenSSH: Undocumented GSSAPIStrictAcceptorCheck behavior impacts security in Windows Active Directory
Weaknesses CWE-909
References
Metrics threat_severity

None

threat_severity

Moderate


Wed, 08 Jul 2026 01:00:00 +0000

Type Values Removed Values Added
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.
First Time appeared Openbsd
Openbsd openssh
Weaknesses CWE-573
CPEs cpe:2.3:a:openbsd:openssh:*:*:*:*:*:*:*:*
Vendors & Products Openbsd
Openbsd openssh
References
Metrics cvssV3_1

{'score': 4.8, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N'}


cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2026-07-08T13:48:01.134Z

Reserved: 2026-07-08T00:11:04.817Z

Link: CVE-2026-59998

cve-icon Vulnrichment

Updated: 2026-07-08T13:47:48.429Z

cve-icon NVD

No data.

cve-icon Redhat

Severity : Moderate

Publid Date: 2026-07-08T00:11:05Z

Links: CVE-2026-59998 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2026-07-08T15:30:04Z

Weaknesses