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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 Reserved 2026-07-08 | Published 2026-07-08 | Updated 2026-07-08 | Assigner mitre




MEDIUM: 4.8CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N

Problem types

CWE-573 Improper Following of Specification by Caller

Product status

Default status
unaffected

Any version before 10.4
affected

References

www.openwall.com/lists/oss-security/2026/07/06/5

marc.info/?l=openssh-unix-dev&m=178333966933090&w=2

www.openssh.org/releasenotes.html

cve.org (CVE-2026-59998)

nvd.nist.gov (CVE-2026-59998)

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