Medium4.8Red Hat & Ubuntu Linux Updated
Undocumented GSSAPIStrictAcceptorCheck behavior impacts security in Windows Active Directory
CVE-2026-59998 Published Jul 8, 2026Updated by vendor Jul 8, 2026
CVE-2026-59998
Affected products & platforms
Red Hat & Ubuntu LinuxUnclassified
Summary
Undocumented GSSAPIStrictAcceptorCheck behavior impacts security in Windows Active Directory. Red Hat rates this moderate (CVSS 4.8). Weakness: CWE-909. Affected package(s): openssh-main. Resolved in Red Hat advisory RHSA-2026:37382 — update the affected packages (`sudo dnf update`).
Affected versions
- openssh-main-10.4p1-1.hum1
Official advisory · high-confidence parse· fetched 2 hours ago·verify at source
Fixed versions
- RHSA-2026:37382
Official advisory · high-confidence parse· fetched 2 hours ago·verify at source
Mitigation checklist
Recommended fix / mitigation
- Update the affected package(s) to the fixed version shipped in RHSA-2026:37382 (`sudo dnf update` / `yum update`).
Official advisory · high-confidence parse· fetched 2 hours ago·verify at source
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