CVE-2026-56021

Webmin information disclosure via regex pattern

CVSS 6.9 MEDIUMEPSS 0.3%CWE-185 CWE-777

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

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

Affected products

Webmin · Webmin

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References

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