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BIT-TOMCAT-2025-66614 Apache Tomcat: Client certificate verification bypass due to virtual host mapping

🗓️ 20 Feb 2026 09:52:57Reported by GoogleType 
osv
 osv🔗 osv.dev👁 6 Views

Tomcat certificate verification bypass via server name indication and host header mismatch across virtual hosts; upgrade to fixed versions.

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IBM Security Bulletins		Security Bulletin: Due to the use of Apache Tomcat and mchange-commons-java, IBM ApplinX is vulnerable to Improper Input Validation vulnerablities (CVE-2025-66614, CVE-2026-24733, CVE-2026-24734) and an 'Injection' vulnerability (CVE-2026-27727).
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20 Mar 2026 10:00Current
5.7Medium risk
Vulners AI Score5.7
CVSS 3.17.6 - 9.1
EPSS0.00235
SSVC
apache tomcatclient certificateserver name indicationhost headervirtual hostscertificate authenticationversion upgrade
6