CVE-2026-35092

{"id": "CVE-2026-35092", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-35092", "role": "CISA Coordinator", "options": [{"exploitation": "none"}, {"automatable": "yes"}, {"technicalImpact": "partial"}], "version": "2.0.3", "timestamp": "2026-04-01T13:29:07.148266Z"}}], "cvssMetricV31": [{"type": "Secondary", "source": "secalert@redhat.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.5, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 3.9}]}, "affected": [{"source": "secalert@redhat.com", "affectedData": [{"cpes": ["cpe:/o:redhat:enterprise_linux:10.1"], "vendor": "Red Hat", "product": "Red Hat Enterprise Linux 10", "versions": [{"status": "unaffected", "version": "0:3.1.9-2.el10_1.1", "lessThan": "*", "versionType": "rpm"}], "packageName": "corosync", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/o:redhat:enterprise_linux:10.2"], "vendor": "Red Hat", "product": "Red Hat Enterprise Linux 10", "versions": [{"status": "unaffected", "version": "0:3.1.10-1.el10_2.1", "lessThan": "*", "versionType": "rpm"}], "packageName": "corosync", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/o:redhat:enterprise_linux_eus:10.0"], "vendor": "Red Hat", "product": "Red Hat Enterprise Linux 10.0 Extended Update Support", "versions": [{"status": "unaffected", "version": "0:3.1.9-1.el10_0.2", "lessThan": "*", "versionType": "rpm"}], "packageName": "corosync", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/o:redhat:enterprise_linux:7::server"], "vendor": "Red Hat", "product": "Red Hat Enterprise Linux 7 Extended Lifecycle Support", "versions": [{"status": "unaffected", "version": "0:2.4.5-7.el7_9.3", "lessThan": "*", "versionType": "rpm"}], "packageName": "corosync", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:enterprise_linux:8::appstream", "cpe:/a:redhat:enterprise_linux:8::crb", "cpe:/a:redhat:enterprise_linux:8::highavailability", "cpe:/a:redhat:enterprise_linux:8::resilientstorage"], "vendor": "Red Hat", "product": "Red Hat Enterprise Linux 8", "versions": [{"status": "unaffected", "version": "0:3.1.8-1.el8_10.1", "lessThan": "*", "versionType": "rpm"}], "packageName": "corosync", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:rhel_aus:8.4::appstream", "cpe:/a:redhat:rhel_aus:8.4::highavailability", "cpe:/a:redhat:rhel_eus_long_life:8.4::appstream", "cpe:/a:redhat:rhel_eus_long_life:8.4::highavailability"], "vendor": "Red Hat", "product": "Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support", "versions": [{"status": "unaffected", "version": "0:3.1.0-3.el8_4.2", "lessThan": "*", "versionType": "rpm"}], "packageName": "corosync", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:rhel_aus:8.4::appstream", "cpe:/a:redhat:rhel_aus:8.4::highavailability", "cpe:/a:redhat:rhel_eus_long_life:8.4::appstream", "cpe:/a:redhat:rhel_eus_long_life:8.4::highavailability"], "vendor": "Red Hat", "product": "Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On", "versions": [{"status": "unaffected", "version": "0:3.1.0-3.el8_4.2", "lessThan": "*", "versionType": "rpm"}], "packageName": "corosync", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:rhel_aus:8.6::appstream", "cpe:/a:redhat:rhel_e4s:8.6::appstream", "cpe:/a:redhat:rhel_e4s:8.6::highavailability", "cpe:/a:redhat:rhel_tus:8.6::appstream", "cpe:/a:redhat:rhel_tus:8.6::highavailability"], "vendor": "Red Hat", "product": "Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support", "versions": [{"status": "unaffected", "version": "0:3.1.5-2.el8_6.1", "lessThan": "*", "versionType": "rpm"}], "packageName": "corosync", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:rhel_aus:8.6::appstream", "cpe:/a:redhat:rhel_e4s:8.6::appstream", "cpe:/a:redhat:rhel_e4s:8.6::highavailability", "cpe:/a:redhat:rhel_tus:8.6::appstream", "cpe:/a:redhat:rhel_tus:8.6::highavailability"], "vendor": "Red Hat", "product": "Red Hat Enterprise Linux 8.6 Telecommunications Update Service", "versions": [{"status": "unaffected", "version": "0:3.1.5-2.el8_6.1", "lessThan": "*", "versionType": "rpm"}], "packageName": "corosync", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:rhel_aus:8.6::appstream", "cpe:/a:redhat:rhel_e4s:8.6::appstream", "cpe:/a:redhat:rhel_e4s:8.6::highavailability", "cpe:/a:redhat:rhel_tus:8.6::appstream", "cpe:/a:redhat:rhel_tus:8.6::highavailability"], "vendor": "Red Hat", "product": "Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions", "versions": [{"status": "unaffected", "version": "0:3.1.5-2.el8_6.1", "lessThan": "*", "versionType": "rpm"}], "packageName": "corosync", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:rhel_e4s:8.8::appstream", "cpe:/a:redhat:rhel_e4s:8.8::highavailability", "cpe:/a:redhat:rhel_tus:8.8::appstream", "cpe:/a:redhat:rhel_tus:8.8::highavailability"], "vendor": "Red Hat", "product": "Red Hat Enterprise Linux 8.8 Telecommunications Update Service", "versions": [{"status": "unaffected", "version": "0:3.1.7-1.el8_8.1", "lessThan": "*", "versionType": "rpm"}], "packageName": "corosync", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:rhel_e4s:8.8::appstream", "cpe:/a:redhat:rhel_e4s:8.8::highavailability", "cpe:/a:redhat:rhel_tus:8.8::appstream", "cpe:/a:redhat:rhel_tus:8.8::highavailability"], "vendor": "Red Hat", "product": "Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions", "versions": [{"status": "unaffected", "version": "0:3.1.7-1.el8_8.1", "lessThan": "*", "versionType": "rpm"}], "packageName": "corosync", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:enterprise_linux:9::appstream", "cpe:/a:redhat:enterprise_linux:9::crb", "cpe:/a:redhat:enterprise_linux:9::highavailability", "cpe:/a:redhat:enterprise_linux:9::resilientstorage"], "vendor": "Red Hat", "product": "Red Hat Enterprise Linux 9", "versions": [{"status": "unaffected", "version": "0:3.1.9-2.el9_7.1", "lessThan": "*", "versionType": "rpm"}], "packageName": "corosync", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:enterprise_linux:9::appstream", "cpe:/a:redhat:enterprise_linux:9::crb", "cpe:/a:redhat:enterprise_linux:9::highavailability", "cpe:/a:redhat:enterprise_linux:9::resilientstorage"], "vendor": "Red Hat", "product": "Red Hat Enterprise Linux 9", "versions": [{"status": "unaffected", "version": "0:3.1.10-1.el9_8.1", "lessThan": "*", "versionType": "rpm"}], "packageName": "corosync", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:rhel_e4s:9.0::appstream", "cpe:/a:redhat:rhel_e4s:9.0::highavailability", "cpe:/a:redhat:rhel_e4s:9.0::resilientstorage"], "vendor": "Red Hat", "product": "Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions", "versions": [{"status": "unaffected", "version": "0:3.1.5-3.el9_0.1", "lessThan": "*", "versionType": "rpm"}], "packageName": "corosync", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:rhel_e4s:9.2::appstream", "cpe:/a:redhat:rhel_e4s:9.2::highavailability", "cpe:/a:redhat:rhel_e4s:9.2::resilientstorage"], "vendor": "Red Hat", "product": "Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions", "versions": [{"status": "unaffected", "version": "0:3.1.7-1.el9_2.1", "lessThan": "*", "versionType": "rpm"}], "packageName": "corosync", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:rhel_eus:9.4::appstream", "cpe:/a:redhat:rhel_eus:9.4::crb", "cpe:/a:redhat:rhel_eus:9.4::highavailability", "cpe:/a:redhat:rhel_eus:9.4::resilientstorage"], "vendor": "Red Hat", "product": "Red Hat Enterprise Linux 9.4 Extended Update Support", "versions": [{"status": "unaffected", "version": "0:3.1.8-1.el9_4.1", "lessThan": "*", "versionType": "rpm"}], "packageName": "corosync", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:rhel_eus:9.6::appstream", "cpe:/a:redhat:rhel_eus:9.6::crb", "cpe:/a:redhat:rhel_eus:9.6::highavailability", "cpe:/a:redhat:rhel_eus:9.6::resilientstorage"], "vendor": "Red Hat", "product": "Red Hat Enterprise Linux 9.6 Extended Update Support", "versions": [{"status": "unaffected", "version": "0:3.1.9-2.el9_6.1", "lessThan": "*", "versionType": "rpm"}], "packageName": "corosync", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:openshift:4"], "vendor": "Red Hat", "product": "Red Hat OpenShift Container Platform 4", "packageName": "openshift/ose-rhel-coreos-9", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "unaffected"}]}], "published": "2026-04-01T14:16:57.237", "references": [{"url": "https://access.redhat.com/errata/RHSA-2026:13644", "source": "secalert@redhat.com"}, {"url": "https://access.redhat.com/errata/RHSA-2026:13657", "source": "secalert@redhat.com"}, {"url": "https://access.redhat.com/errata/RHSA-2026:13673", "source": "secalert@redhat.com"}, {"url": "https://access.redhat.com/errata/RHSA-2026:14205", "source": "secalert@redhat.com"}, {"url": "https://access.redhat.com/errata/RHSA-2026:14210", "source": "secalert@redhat.com"}, {"url": "https://access.redhat.com/errata/RHSA-2026:14211", "source": "secalert@redhat.com"}, {"url": "https://access.redhat.com/errata/RHSA-2026:14212", "source": "secalert@redhat.com"}, {"url": "https://access.redhat.com/errata/RHSA-2026:14213", "source": "secalert@redhat.com"}, {"url": "https://access.redhat.com/errata/RHSA-2026:14214", "source": "secalert@redhat.com"}, {"url": "https://access.redhat.com/errata/RHSA-2026:14215", "source": "secalert@redhat.com"}, {"url": "https://access.redhat.com/errata/RHSA-2026:14216", "source": "secalert@redhat.com"}, {"url": "https://access.redhat.com/errata/RHSA-2026:19043", "source": "secalert@redhat.com"}, {"url": "https://access.redhat.com/errata/RHSA-2026:19200", "source": "secalert@redhat.com"}, {"url": "https://access.redhat.com/errata/RHSA-2026:20916", "source": "secalert@redhat.com"}, {"url": "https://access.redhat.com/security/cve/CVE-2026-35092", "tags": ["Third Party Advisory", "VDB Entry"], "source": "secalert@redhat.com"}, {"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2453169", "tags": ["Exploit", "Third Party Advisory"], "source": "secalert@redhat.com"}, {"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2453814", "tags": ["Issue Tracking", "Third Party Advisory"], "source": "secalert@redhat.com"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Secondary", "source": "secalert@redhat.com", "description": [{"lang": "en", "value": "CWE-190"}]}], "descriptions": [{"lang": "en", "value": "A flaw was found in Corosync. An integer overflow vulnerability in Corosync's join message sanity validation allows a remote, unauthenticated attacker to send crafted User Datagram Protocol (UDP) packets. This can cause the service to crash, leading to a denial of service. This vulnerability specifically affects Corosync deployments configured to use totemudp/totemudpu mode."}, {"lang": "es", "value": "Se encontr\u00f3 una falla en Corosync. Una vulnerabilidad de desbordamiento de entero en la validaci\u00f3n de integridad del mensaje de uni\u00f3n de Corosync permite a un atacante remoto no autenticado enviar paquetes manipulados del protocolo de datagramas de usuario (UDP). Esto puede causar que el servicio falle, lo que lleva a una denegaci\u00f3n de servicio. Esta vulnerabilidad afecta espec\u00edficamente a las implementaciones de Corosync configuradas para usar el modo totemudp/totemudpu."}], "lastModified": "2026-10-26T21:10:00.170", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:corosync:corosync:-:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "5008766D-B12C-48F2-A70A-2344860259C2"}, {"criteria": "cpe:2.3:a:redhat:openshift:4.0:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "5F7E2F04-474D-4196-9CE8-242642990A16"}, {"criteria": "cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "142AD0DD-4CF3-4D74-9442-459CE3347E3A"}, {"criteria": "cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "F4CFF558-3C47-480D-A2F0-BABF26042943"}, {"criteria": "cpe:2.3:o:redhat:enterprise_linux:9.0:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "7F6FB57C-2BC7-487C-96DD-132683AEB35D"}, {"criteria": "cpe:2.3:o:redhat:enterprise_linux:10.0:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "D65C2163-CFC2-4ABB-8F4E-CB09CEBD006C"}], "operator": "OR"}]}], "sourceIdentifier": "secalert@redhat.com"}