Vulnerability intelligence
CVE-2026-56022
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.
CVSS Score
6.9
Medium
EPSS — Exploit Probability
0.6%
Riskier than 45% of all CVEs · checked 2026-09-22
Exploitation
Not in CISA KEV
KEV does not include every exploited vulnerability
Remediation
unknown
Check vendor advisories
1 article across 1 outlet · first covered Jun 24, 2026 · latest Jun 24, 2026
Coverage timeline
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Critical Webmin flaws expose authentication bypass and data leakssecurityonline.info · Jun 24, 2026