CVE-2026-56022
Webmin MFA bypass
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 2.641.
INFO
Published Date :
June 18, 2026, 4:11 p.m.
Last Modified :
June 18, 2026, 4:11 p.m.
Remotely Exploit :
No
Source :
cisa-cg
Affected Products
The following products are affected by CVE-2026-56022
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
No affected product recoded yet
Solution
- Update Webmin to version 2.641 or later.
- Remove the 'User-Agent: webmin' header if possible.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
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The following list is the news that have been mention
CVE-2026-56022 vulnerability anywhere in the article.