CVE-2026-56021

Medium

Description

Webmin allows unauthenticated attackers to read the contents of any file ending in .conf within module directories, due to a bypassable regex pattern.

SeverityMedium

CVSS5.3

Exploit probability—

Product

Webmin

PublishedJun 18, 2026

First seenJun 18, 2026

Weakness typeCWE-185CWE-185 CWE-777CWE-777

How to fix

Update

webmin webmin1.290 or later

Vendor advisories

webmin.com/security/#webmin-prior-to-2641
github.com/webmin/webmin/releases/tag/2.641

Affected products

Product	Affected versions	Fixed in
webmin webmin	v < 1.290	1.290

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