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undertow-core: Undertow: Authentication Bypass via AJP ssl_cert/is_ssl Forgery

🗓️ 11 Aug 2026 17:41:19Reported by RedHatType 
redhat
 redhat
🔗 access.redhat.com👁 7 Views

Undertow AJP listener accepts forged ssl_cert and is_ssl attributes, enabling unauthenticated CLIENT-CERT bypass via direct TCP port 8009 access.

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20 Aug 2026 15:18Current
5.3Medium risk
Vulners AI Score5.3
CVSS 3.17.4
EPSS0.00222
SSVC
7