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CVE-2026-56022— Webmin MFA bypass

CVSS 5.3 · Medium

Affected Version Matrix 2

VendorProductVersion RangeStatus
WebminWebmin< 2.641affected
2.641unaffected
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I. Basic Information for CVE-2026-56022

Vulnerability Information
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Vulnerability Title
Webmin MFA bypass
Source: NVD (National Vulnerability Database)
Vulnerability Description
Webmin accepts basic authentication without session cookies when an attacker provides the 'User-Agent: webmin' header, allowing bypass of additional MFA requirements. Fixed in 2.641.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
使用单一因素认证机制
Source: NVD (National Vulnerability Database)

Affected Products

VendorProductAffected VersionsCPESubscribe
WebminWebmin 0 ~ 2.641 -

II. Public POCs for CVE-2026-56022

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III. Intelligence Information for CVE-2026-56022

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Vendor Advisories for CVE-2026-56022 (3)

Vendor Pages for CVE-2026-56022 (1)

Same Patch Batch · Webmin · 2026-06-18 · 3 CVEs total

CVE-2026-560208.1 HIGHWebmin HTTP header authentication bypass
CVE-2026-560215.3 MEDIUMWebmin information disclosure via regex pattern

IV. Related Vulnerabilities

Same product: Webmin
Same vendor: Webmin
Same weakness: CWE-308

V. Comments for CVE-2026-56022

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