CVE-2026-56022EPSS p44.4%

CVE-2026-56022CVE-2026-56022

webmin / webmin

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.

Scoring

CVSS 5.3 ()
VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
EPSS0.56% probability of exploitation · percentile 44.4% · 2026-10-05T12:00:23Z
Last modified2026-08-11
Sourced from NVD + FIRST.org EPSS. Curated for EU compliance use cases by Adam Lundqvist, Founder at SQUR.