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CVE-2026-21891

🗓️ 10 Jan 2026 05:40:31Reported by redhat.comType 
redhatcve
 redhatcve
🔗 access.redhat.com👁 4 Views

ZimaOS login flaw lets login with common system usernames; versions up to 1.5.0 unpatched.

Related
Refs
ReporterTitlePublishedViews
Family
Circl
CVE-2026-21891
8 Jan 202615:00
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CNNVD
ZimaOS 安全漏洞
8 Jan 202600:00
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8 Jan 202614:00
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CVE-2026-21891 ZimaOS has Authentication Bypass via System-Level Username
8 Jan 202614:00
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EUVD-2026-1670
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Nuclei
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6 Jun 202603:01
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CVE-2026-21891
8 Jan 202614:15
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OSV
CVE-2026-21891 ZimaOS has Authentication Bypass via System-Level Username
8 Jan 202614:00
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Positive Technologies
PT-2026-2122
8 Jan 202600:00
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VulnCheck KEV
VulnCheck KEV: CVE-2026-21891
7 Mar 202600:00
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10 Jan 2026 05:40Current
6.8Medium risk
Vulners AI Score6.8
CVSS 3.19.4 - 9.8
EPSS0.11368
SSVC
4