GHSA-23xj-gfh3-wf2hCriticalCVSS 8.1
The Webmin HTTP server (miniserv.pl) allows unauthenticated attackers to impersonate any user...
🔗 CVE IDs covered (1)
📋 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 2.641.
🔗 References (6)
- https://nvd.nist.gov/vuln/detail/CVE-2026-56020
- 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-2026-56020
- https://github.com/advisories/GHSA-23xj-gfh3-wf2h