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high7.4

CVE-2026-15554

the Undertow AJP listener honours forged ssl_cert and is_ssl AJP attributes without requiring any shared-secret authentication.

Impact

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.

Affected products

VendorProductAffected versions
Red HatRed Hat JBoss Enterprise Application Platform 8.1 For RHEL 10
Versions patch: 0:4.0.5-1.redhat_00001.1.el10eap, patch: 0:1.85.0-1.redhat_00001.1.el10eap, patch: 0:8.1.8-9.GA_redhat_00006.1.el10eap, patch: 0:2.25.4-1.redhat_00003.1.el10eap, patch: 0:2.1.0-1.redhat_00001.1.el10eap, patch: 0:3.2.2-1.redhat_00001.1.el10eap
Red HatRed Hat JBoss Enterprise Application Platform 8.1 For RHEL 9
Versions patch: 0:3.6.3-1.Final_redhat_00001.1.el9eap, patch: 0:3.0.22-1.Final_redhat_00001.1.el9eap, patch: 0:5.1.0-1.Final_redhat_00001.1.el9eap, patch: 0:801.8.0-1.GA_redhat_00001.1.el9eap, patch: 0:1.85.0-1.redhat_00001.1.el9eap, patch: 0:6.6.54-1.Final_redhat_00001.1.el9eap
Red HatRed Hat JBoss Enterprise Application Platform 8.1 For RHEL 8
Versions patch: 0:4.0.11-2.SP1_redhat_00001.1.el8eap, patch: 0:2.40.0-8.redhat_00024.1.el8eap, patch: 0:2.2.0-1.Final_redhat_00001.1.el8eap, patch: 0:2.3.2-1.redhat_00001.1.el8eap, patch: 0:3.0.6-1.redhat_00001.1.el8eap, patch: 0:8.1.8-9.GA_redhat_00006.1.el8eap
Red HatRed Hat JBoss Enterprise Application Platform 7.4 ELS On RHEL 7
Versions patch: 0:7.4.25-2.GA_redhat_00001.1.el7eap, patch: 0:2.5.5-24.SP12_redhat_00016.1.el7eap, patch: 0:2.2.40-2.SP3_redhat_00001.1.el7eap, patch: 0:2.5.5-30.SP12_redhat_00020.1.el7eap, patch: 0:2.16.0-22.redhat_00057.1.el7eap, patch: 0:4.1.135-1.Final_redhat_00001.1.el7eap
Red HatRed Hat JBoss Enterprise Application Platform 8.1.8.GA
Version patch: 2.3.26.SP3-redhat-00001

Weakness classification

CWE-295

References