{"id":"CVE-2026-10832","title":"A flaw was found in the DERDecoder class within wildfly-elytron-asn1","summary":"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…","severity":"medium","cvss":5.9,"cvssVector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","cwe":["CWE-770"],"vendor":"Red Hat","product":"wildfly-elytron-asn1","affected":["wildfly-elytron-asn1 (all versions)","wildfly-elytron-asn1 (all versions)","wildfly-elytron-asn1 (all versions)","wildfly-elytron-asn1 (all versions)","rhbk/keycloak-rhel9 (all versions)","rhbk-openshift-rhel9/rhbk-openshift-rhel9 (all versions)","wildfly-elytron-asn1 (all versions)","wildfly-elytron-asn1 (all versions)","wildfly-elytron-asn1 (all versions)","wildfly-elytron-asn1 (all versions)","wildfly-elytron-asn1 (all versions)","wildfly-elytron-asn1 (all versions)","wildfly-elytron-asn1 (all versions)","rh-lightspeed-runtimes/runtimes-agent-init-rhel9 (all versions)","wildfly-elytron-asn1 (all versions)","wildfly-elytron-asn1 (all versions)"],"published":"2026-09-18","updated":"2026-09-18","sourceUpdated":"2026-09-18T19:06:08.407","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-10832","references":[{"url":"https://access.redhat.com/security/cve/CVE-2026-10832","label":"secalert@redhat.com"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2484703","label":"secalert@redhat.com"},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-10832.json"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-10832"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-10832"}],"tags":["nvd","cve.org","csaf","vex","red-hat"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2026-09-18T15:33:47.249004Z"},"ingestedAt":"2026-09-18T14:43:13.070Z","epss":0.00277,"epssPercentile":0.203,"slug":"CVE-2026-10832","body":"## Overview\n\nA 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.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.\n\n## Vendor advisories\n\n- **Red Hat VEX** · Moderate · affected: Cryostat 4, Red Hat build of Apache Camel - HawtIO 4, Red Hat build of Apache Camel 4 for Quarkus 3, Red Hat build of Debezium 3, Red Hat Build of Keycloak, Red Hat build of Quarkus, … · no fix planned: Cryostat 4, Red Hat build of Apache Camel - HawtIO 4, Red Hat build of Apache Camel 4 for Quarkus 3, Red Hat build of Debezium 3, … · updated 2026-09-18 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-10832.json)","depth":"sunlit","depthScore":33,"depthScoreParts":{"impact":32.5,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}