{"id":"CVE-2026-93494","title":"A flaw was found in Netty's StompSubframeDecoder component","summary":"A flaw was found in Netty's StompSubframeDecoder component. A remote attacker can exploit this vulnerability by sending a specially crafted STOMP frame body without its terminating null byte. This causes the decoder to allocate a ByteBuf…","severity":"high","cvss":7.5,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","cwe":["CWE-1035"],"vendor":"Red Hat","product":"netty-codec-stomp","affected":["netty-codec-stomp (all versions)","netty-codec-stomp (all versions)","jboss-eap-7/eap74-els-openjdk11-openshift-rhel8 (all versions)","jboss-eap-7/eap74-els-openjdk17-openshift-rhel8 (all versions)","jboss-eap-7/eap74-els-openjdk8-openshift-rhel8 (all versions)","netty-codec-stomp (all versions)","netty-codec-stomp (all versions)"],"published":"2026-09-18","updated":"2026-09-18","sourceUpdated":"2026-09-18T20:17:32.653","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-93494","references":[{"url":"https://access.redhat.com/security/cve/CVE-2026-93494","label":"secalert@redhat.com"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2536898","label":"secalert@redhat.com"},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-93494.json"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-93494"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-93494"}],"tags":["nvd","cve.org","csaf","vex","red-hat"],"ssvc":{"exploitation":"none","automatable":"yes","technicalImpact":"partial","timestamp":"2026-09-18T19:36:11.612672Z"},"epss":0.00409,"epssPercentile":0.34951,"ingestedAt":"2026-09-18T08:38:04.107Z","slug":"CVE-2026-93494","body":"## Overview\n\nA flaw was found in Netty's StompSubframeDecoder component. A remote attacker can exploit this vulnerability by sending a specially crafted STOMP frame body without its terminating null byte. This causes the decoder to allocate a ByteBuf (a buffer for bytes) that is never released, leading to a permanent memory leak. Over time, this uncontrolled memory consumption can result in a Denial of Service (DoS) for the application using the affected STOMP codec.\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** · Important · affected: Red Hat build of Apache Camel for Spring Boot 4, Red Hat Fuse 7, Red Hat JBoss Enterprise Application Platform 7, Red Hat Single Sign-On 7 · no fix planned: Red Hat build of Apache Camel for Spring Boot 4, Red Hat Fuse 7, Red Hat JBoss Enterprise Application Platform 7, Red Hat Single Sign-On 7 · updated 2026-09-18 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-93494.json)","depth":"twilight","depthScore":41,"depthScoreParts":{"impact":41.3,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[{"seq":206719,"id":"CVE-2026-93494","ts":1789731638420,"field":"cvss","old":null,"new":"7.5"},{"seq":206718,"id":"CVE-2026-93494","ts":1789731638420,"field":"severity","old":"none","new":"high"}]}