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CVE PROGRAM SOURCE RECORD9.2 Critical

CVE-2026-56020

Webmin HTTP header authentication bypass

Description

The Webmin HTTP server (miniserv.pl) allows unauthenticated attackers to impersonate any user with a configured SSL client certificate by sending a forged HTTP header. A remote attacker can spoof certificate DNs and authenticate as any user. Fixed in 2.202.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Webmin Webmin

Default version status: unknown

  • 0 to < 2.202affected
  • 2.202unaffected

References