CVE-2026-56022

MediumCVSS 5.3/10Last modified Aug 11, 2026

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 2.640.

Metrics

CVSS 3.1 5.3/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Weakness enumeration

CWE-308

Affected software

No affected versions have been published.

Timeline

Published
Jun 18, 2026
Last modified
Aug 11, 2026
NVD status
Analyzed

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CVE-2026-56022: Medium severity, CVSS 5.3 | Vulnix