CVEvulnerability

CVE-2026-56022

6.9 MEDIUM Published 2026-06-18 Modified 2026-08-11 Official page ↗
Status
Analyzed
Published
2026-06-18
Last modified
2026-08-11
Assigner
9119a7d8-5eab-497f-8521-727c672e3725
CVSS 4.0 (9119a7d8-5eab-497f-8521-727c672e3725)
6.9 MEDIUM — CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CVSS 3.1 (9119a7d8-5eab-497f-8521-727c672e3725)
5.3 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Weaknesses
CWE-308

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.

Affected configurations

• webmin webmin (< 2.640)

Related

Weakness · CWE (1)

  • CWE-308 Use of Single-factor Authentication weakness

References