{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2026-87742", "assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749", "state": "PUBLISHED", "assignerShortName": "redhat", "dateReserved": "2026-09-09T05:58:00.263Z", "datePublished": "2026-09-17T14:57:44.414Z", "dateUpdated": "2026-10-09T15:37:02.180Z" }, "containers": { "cna": { "title": "Quarkus-websockets-next: denial of service (oom) in quarkus-websockets-next via unbounded message buffering", "metrics": [ { "other": { "content": { "value": "Important", "namespace": "https://access.redhat.com/security/updates/classification/" }, "type": "Red Hat severity rating" } }, { "cvssV3_1": { "attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1" }, "format": "CVSS" } ], "descriptions": [ { "lang": "en", "value": "A flaw was found in quarkus-websockets-next. This vulnerability allows a remote attacker to cause a Denial of Service (DoS) by streaming messages over a single connection faster than the application can process them. Due to unbounded message buffering and a lack of read backpressure, this rapidly exhausts heap space, leading to a java.lang.OutOfMemoryError that crashes the Java Virtual Machine (JVM)." } ], "affected": [ { "vendor": "Red Hat", "product": "Red Hat build of Quarkus 3.27.5.SP2", "collectionURL": "https://access.redhat.com/jbossnetwork/restricted/listSoftware.html", "defaultStatus": "unaffected", "packageName": "quarkus-websockets-next", "cpes": [ "cpe:/a:redhat:quarkus:3.27::el8" ] }, { "vendor": "Red Hat", "product": "Red Hat build of Quarkus 3.33.3.SP2", "collectionURL": "https://access.redhat.com/jbossnetwork/restricted/listSoftware.html", "defaultStatus": "unaffected", "packageName": "quarkus-websockets-next", "cpes": [ "cpe:/a:redhat:quarkus:3.33::el8" ] }, { "vendor": "Red Hat", "product": "Exploit Intelligence", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "packageName": "exploit-intelligence/agent-client-rhel9", "defaultStatus": "affected", "cpes": [ "cpe:/a:redhat:exploit_intelligence:0" ] }, { "vendor": "Red Hat", "product": "Red Hat Enterprise Linux AI (RHEL AI) 3", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "packageName": "rhelai3/bootc-cuda-rhel9", "defaultStatus": "affected", "cpes": [ "cpe:/a:redhat:enterprise_linux_ai:3" ] }, { "vendor": "Red Hat", "product": "Red Hat Enterprise Linux AI (RHEL AI) 3", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "packageName": "rhelai3/bootc-gaudi-rhel9", "defaultStatus": "affected", "cpes": [ "cpe:/a:redhat:enterprise_linux_ai:3" ] }, { "vendor": "Red Hat", "product": "Red Hat Enterprise Linux AI (RHEL AI) 3", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "packageName": "rhelai3/bootc-rocm-rhel9", "defaultStatus": "affected", "cpes": [ "cpe:/a:redhat:enterprise_linux_ai:3" ] }, { "vendor": "Red Hat", "product": "Red Hat Enterprise Linux AI (RHEL AI) 3", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "packageName": "rhelai3/disk-image-cuda-rhel9", "defaultStatus": "affected", "cpes": [ "cpe:/a:redhat:enterprise_linux_ai:3" ] } ], "references": [ { "url": "https://access.redhat.com/errata/RHSA-2026:69440", "name": "RHSA-2026:69440", "tags": [ "vendor-advisory", "x_refsource_REDHAT" ] }, { "url": "https://access.redhat.com/errata/RHSA-2026:69470", "name": "RHSA-2026:69470", "tags": [ "vendor-advisory", "x_refsource_REDHAT" ] }, { "url": "https://access.redhat.com/security/cve/CVE-2026-87742", "tags": [ "vdb-entry", "x_refsource_REDHAT" ] }, { "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2530522", "name": "RHBZ#2530522", "tags": [ "issue-tracking", "x_refsource_REDHAT" ] } ], "datePublic": "2026-09-17T13:10:22.000Z", "problemTypes": [ { "descriptions": [ { "cweId": "CWE-770", "description": "Allocation of Resources Without Limits or Throttling", "lang": "en", "type": "CWE" } ] } ], "x_redhatCweChain": "CWE-770: Allocation of Resources Without Limits or Throttling", "workarounds": [ { "lang": "en", "value": "Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability." } ], "timeline": [ { "lang": "en", "time": "2026-09-09T05:57:34.505Z", "value": "Reported to Red Hat." }, { "lang": "en", "time": "2026-09-17T13:10:22.000Z", "value": "Made public." } ], "credits": [ { "lang": "en", "value": "Red Hat would like to thank Michael Read ((https://github.com/Michael-JRead)) for reporting this issue." } ], "providerMetadata": { "orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749", "shortName": "redhat", "dateUpdated": "2026-10-09T15:37:02.180Z" }, "x_generator": { "engine": "cvelib 1.8.0" } }, "adp": [ { "metrics": [ { "other": { "type": "ssvc", "content": { "timestamp": "2026-09-17T15:19:05.994572Z", "id": "CVE-2026-87742", "options": [ { "Exploitation": "none" }, { "Automatable": "yes" }, { "Technical Impact": "partial" } ], "role": "CISA Coordinator", "version": "2.0.3" } } } ], "title": "CISA ADP Vulnrichment", "providerMetadata": { "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-09-17T15:19:18.251Z" } } ] } }