Description (CNA)
Webmin accepts basic authentication without session cookies when an attacker provides the 'User-Agent: webmin' header, allowing bypass of additional MFA requirements. Fixed in 2.640.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Webmin / Webmin | affected 0 before 2.640; unaffected 2.640 |
CWE
CWE-308
References
- https://webmin.com/security/#webmin-prior-to-2640
- https://github.com/webmin/webmin/releases/tag/2.640
- https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/IT/white/2026/va-26-169-02.json
- https://www.cve.org/CVERecord?id=CVE-2026-56022
ADP enrichment
No English description supplied.
No references supplied.