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Permalink CVE-2026-15554
7.4 HIGH
  • CVSS version (CVSS): 3.1
  • Attack Vector (AV): Network (N)
  • Attack Complexity (AC): High (H)
  • Privileges Required (PR): None (N)
  • User Interaction (UI): None (N)
  • Scope (S): Unchanged (U)
  • Confidentiality (C): High (H)
  • Integrity (I): High (H)
  • Availability (A): None (N)
  • Modified Attack Vector (MAV): Network (N)
  • Modified Attack Complexity (MAC): High (H)
  • Modified Privileges Required (MPR): None (N)
  • Modified User Interaction (MUI): None (N)
  • Modified Confidentiality (MC): High (H)
  • Modified Scope (MS): Unchanged (U)
  • Modified Integrity (MI): High (H)
  • Modified Availability (MA): None (N)
created 3 weeks, 6 days ago Activity log
  • Created & dismissed (no matching packages found) suggestion 3 weeks, 6 days ago
Undertow-core: undertow: authentication bypass via ajp ssl_cert/is_ssl forgery

the Undertow AJP listener honours forged ssl_cert and is_ssl AJP attributes without requiring any shared-secret authentication. This enables an unauthenticated attacker with direct TCP access to port 8009 to bypass CLIENT-CERT authentication by injecting a forged X.509 certificate via the AJP protocol.

References

Affected products

eap7-netty
  • *
eap7-wildfly
  • *
eap7-undertow
  • *
undertow-core
eap7-ironjacamar
  • *
eap7-jackson-core
  • *
eap7-glassfish-jsf
  • *
eap7-jboss-remoting
  • *
eap7-activemq-artemis
  • *
eap7-jackson-databind
  • *
eap7-jackson-annotations
  • *
eap7-picketlink-bindings
  • *
eap7-jackson-modules-base
  • *
eap7-jackson-modules-java8
  • *
eap7-picketlink-federation
  • *
eap7-jboss-server-migration
  • *
eap7-jackson-jaxrs-providers
  • *
eap7-netty-transport-native-epoll
  • *