CVE-2026-56021

MEDIUM 5.3

Webmin information disclosure via regex pattern

CVSS Score

5.3

EPSS Score

0.0%

EPSS Percentile

0th

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

CWE	CWE-185 CWE-777
Vendor	webmin
Product	webmin
Published	Jun 18, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

None

Affected Versions

Webmin / Webmin

References

NVD ↗ CVE.org ↗ EPSS Data ↗

webmin.com: https://webmin.com/security/#webmin-prior-to-2641 github.com: https://github.com/webmin/webmin/releases/tag/2.641 raw.githubusercontent.com: https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/IT/white/2026/va-26-169-02.json cve.org: https://www.cve.org/CVERecord?id=CVE-2026-56021

Credits

Adem El Adeb, vulone.com/vul1.com