CVE-2026-15554
eap8-activemq-artemis: the Undertow AJP listener honours forged ssl_cert and is_ssl AJP attributes without requiring any shared-secret authe...
CVE-2026-15554 is fixed in 41 products on 1 platform, first by RHSA-2026:70230, released September 23, 2026. It is not reported as exploited. Patch Radar priority: High.
High
CVSS
7.4
important
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0048
41st percentile
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.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| eap8-activemq-artemis · RHEL 10 | 2.40.0-8.redhat_00024.1.el10eap | RHSA-2026:70230 | Sep 23, 2026 |
| eap8-apache-cxf · RHEL 10 | 4.1.7-1.SP1_redhat_00001.1.el10eap | RHSA-2026:70230 | Sep 23, 2026 |
| eap8-artemis-wildfly-integration · RHEL 10 | 2.0.5-1.Final_redhat_00001.1.el10eap | RHSA-2026:70230 | Sep 23, 2026 |
| eap8-bouncycastle · RHEL 10 | 1.85.0-1.redhat_00001.1.el10eap | RHSA-2026:70230 | Sep 23, 2026 |
| eap8-cryptacular · RHEL 10 | 1.2.7-1.redhat_00002.1.el10eap | RHSA-2026:70230 | Sep 23, 2026 |
| eap8-eap-product-conf-parent · RHEL 10 | 801.8.0-1.GA_redhat_00001.1.el10eap | RHSA-2026:70230 | Sep 23, 2026 |
| eap8-hibernate · RHEL 10 | 6.6.54-1.Final_redhat_00001.1.el10eap | RHSA-2026:70230 | Sep 23, 2026 |
| eap8-httpcomponents-asyncclient · RHEL 10 | 4.1.5-5.redhat_00008.1.el10eap | RHSA-2026:70230 | Sep 23, 2026 |
| eap8-ironjacamar · RHEL 10 | 3.0.22-1.Final_redhat_00001.1.el10eap | RHSA-2026:70230 | Sep 23, 2026 |
| eap8-jackson-annotations · RHEL 10 | 2.18.9-1.redhat_00003.1.el10eap | RHSA-2026:70230 | Sep 23, 2026 |
| eap8-jackson-core · RHEL 10 | 2.18.9-1.redhat_00003.1.el10eap | RHSA-2026:70230 | Sep 23, 2026 |
| eap8-jackson-databind · RHEL 10 | 2.18.9-1.redhat_00003.1.el10eap | RHSA-2026:70230 | Sep 23, 2026 |
| eap8-jackson-dataformats-text · RHEL 10 | 2.18.9-1.redhat_00003.1.el10eap | RHSA-2026:70230 | Sep 23, 2026 |
| eap8-jackson-jaxrs-providers · RHEL 10 | 2.18.9-1.redhat_00003.1.el10eap | RHSA-2026:70230 | Sep 23, 2026 |
| eap8-jackson-modules-base · RHEL 10 | 2.18.9-1.redhat_00003.1.el10eap | RHSA-2026:70230 | Sep 23, 2026 |
| eap8-jackson-modules-java8 · RHEL 10 | 2.18.9-1.redhat_00003.1.el10eap | RHSA-2026:70230 | Sep 23, 2026 |
| eap8-jakarta-xml-bind-api · RHEL 10 | 4.0.5-1.redhat_00001.1.el10eap | RHSA-2026:70230 | Sep 23, 2026 |
| eap8-jaxb · RHEL 10 | 4.0.7-4.redhat_00001.1.el10eap | RHSA-2026:70230 | Sep 23, 2026 |
| eap8-jaxbintros · RHEL 10 | 2.1.0-1.redhat_00001.1.el10eap | RHSA-2026:70230 | Sep 23, 2026 |
| eap8-jboss-logging · RHEL 10 | 3.6.3-1.Final_redhat_00001.1.el10eap | RHSA-2026:70230 | Sep 23, 2026 |
| eap8-jboss-remoting · RHEL 10 | 5.0.31-1.SP2_redhat_00001.1.el10eap | RHSA-2026:70230 | Sep 23, 2026 |
| eap8-jbossws-api · RHEL 10 | 3.1.0-1.Final_redhat_00001.1.el10eap | RHSA-2026:70230 | Sep 23, 2026 |
| eap8-jbossws-common-tools · RHEL 10 | 2.2.0-1.Final_redhat_00001.1.el10eap | RHSA-2026:70230 | Sep 23, 2026 |
| eap8-jbossws-cxf · RHEL 10 | 7.4.0-1.Final_redhat_00001.1.el10eap | RHSA-2026:70230 | Sep 23, 2026 |
| eap8-jbossws-jaxws-undertow-httpspi · RHEL 10 | 3.0.1-1.Final_redhat_00001.1.el10eap | RHSA-2026:70230 | Sep 23, 2026 |
| eap8-jbossws-spi · RHEL 10 | 5.1.0-1.Final_redhat_00001.1.el10eap | RHSA-2026:70230 | Sep 23, 2026 |
| eap8-jsf-impl · RHEL 10 | 4.0.11-2.SP1_redhat_00001.1.el10eap | RHSA-2026:70230 | Sep 23, 2026 |
| eap8-log4j · RHEL 10 | 2.25.4-1.redhat_00003.1.el10eap | RHSA-2026:70230 | Sep 23, 2026 |
| eap8-neethi · RHEL 10 | 3.2.2-1.redhat_00001.1.el10eap | RHSA-2026:70230 | Sep 23, 2026 |
| eap8-netty · RHEL 10 | 4.1.136-1.Final_redhat_00001.1.el10eap | RHSA-2026:70230 | Sep 23, 2026 |
| eap8-netty-transport-native-epoll · RHEL 10 | 4.1.136-1.Final_redhat_00001.1.el10eap | RHSA-2026:70230 | Sep 23, 2026 |
| eap8-nimbus-jose-jwt · RHEL 10 | 9.37.4-1.redhat_00001.1.el10eap | RHSA-2026:70230 | Sep 23, 2026 |
| eap8-parsson · RHEL 10 | 1.1.9-1.redhat_00001.1.el10eap | RHSA-2026:70230 | Sep 23, 2026 |
| eap8-saaj-impl · RHEL 10 | 3.0.6-1.redhat_00001.1.el10eap | RHSA-2026:70230 | Sep 23, 2026 |
| eap8-slf4j · RHEL 10 | 2.0.18-1.redhat_00001.1.el10eap | RHSA-2026:70230 | Sep 23, 2026 |
| eap8-undertow · RHEL 10 | 2.3.26-2.SP3_redhat_00001.1.el10eap | RHSA-2026:70230 | Sep 23, 2026 |
| eap8-wildfly · RHEL 10 | 8.1.8-9.GA_redhat_00006.1.el10eap | RHSA-2026:70230 | Sep 23, 2026 |
| eap8-wildfly-elytron · RHEL 10 | 2.6.11-1.Final_redhat_00001.1.el10eap | RHSA-2026:70230 | Sep 23, 2026 |
| eap8-wildfly-javadocs · RHEL 10 | 8.1.1-12.GA_redhat_00048.1.el10eap | RHSA-2026:70230 | Sep 23, 2026 |
| eap8-ws-commons-XmlSchema · RHEL 10 | 2.3.2-1.redhat_00001.1.el10eap | RHSA-2026:70230 | Sep 23, 2026 |
| eap8-xml-security · RHEL 10 | 3.0.6-1.redhat_00001.1.el10eap | RHSA-2026:70230 | Sep 23, 2026 |
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