CVE-2026-56021

Published: Jun 18, 2026Modified: Jun 24, 2026

6.9

Vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/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

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CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/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:XShow less

Source: 9119a7d8-5eab-497f-8521-727c672e3725 (Secondary)

Description

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

Related CWEs

Incorrect Regular Expression

The product specifies a regular expression in a way that causes data to be improperly matched or compared.

Regular Expression without Anchors

The product uses a regular expression to perform neutralization, but the regular expression is not anchored and may allow malicious or malformed data to slip through.

References (4)

https://github.com/webmin/webmin/releases/tag/2.641

Source: 9119a7d8-5eab-497f-8521-727c672e3725

https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/IT/white/2026/va-26-169-02.json

Source: 9119a7d8-5eab-497f-8521-727c672e3725

https://webmin.com/security/#webmin-prior-to-2641

Source: 9119a7d8-5eab-497f-8521-727c672e3725

https://www.cve.org/CVERecord?id=CVE-2026-56021

Source: 9119a7d8-5eab-497f-8521-727c672e3725

Timeline

No history available yet.