medium5.3
CVE-2026-56022
Webmin accepts basic authentication without session cookies when an attacker provides the 'User-Agent: webmin' header, allowing bypass of additional MFA requir…
Impact
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 products
| Vendor | Product | Affected versions |
|---|---|---|
| Webmin | Webmin | before 2.640 |