CVE-2026-78002

{"id": "CVE-2026-78002", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-78002", "role": "CISA Coordinator", "options": [{"exploitation": "none"}, {"automatable": "yes"}, {"technicalImpact": "partial"}], "version": "2.0.3", "timestamp": "2026-08-27T18:29:21.461066Z"}}], "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:10.2"], "vendor": "Red Hat", "product": "Red Hat Enterprise Linux 10", "versions": [{"status": "unaffected", "version": "0:8.2510.0-5.el10_2.2", "lessThan": "*", "versionType": "rpm"}], "packageName": "rsyslog", "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": "0:8.2412.0-1.el10_0.2", "lessThan": "*", "versionType": "rpm"}], "packageName": "rsyslog", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:enterprise_linux:8::appstream"], "vendor": "Red Hat", "product": "Red Hat Enterprise Linux 8", "versions": [{"status": "unaffected", "version": "0:8.2102.0-15.el8_10.3", "lessThan": "*", "versionType": "rpm"}], "packageName": "rsyslog", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:rhel_aus:8.6::appstream", "cpe:/a:redhat:rhel_eus_long_life:8.6::appstream"], "vendor": "Red Hat", "product": "Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support", "versions": [{"status": "unaffected", "version": "0:8.2102.0-7.el8_6.2", "lessThan": "*", "versionType": "rpm"}], "packageName": "rsyslog", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:rhel_aus:8.6::appstream", "cpe:/a:redhat:rhel_eus_long_life:8.6::appstream"], "vendor": "Red Hat", "product": "Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On", "versions": [{"status": "unaffected", "version": "0:8.2102.0-7.el8_6.2", "lessThan": "*", "versionType": "rpm"}], "packageName": "rsyslog", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:rhel_e4s:8.8::appstream", "cpe:/a:redhat:rhel_tus:8.8::appstream"], "vendor": "Red Hat", "product": "Red Hat Enterprise Linux 8.8 Telecommunications Update Service", "versions": [{"status": "unaffected", "version": "0:8.2102.0-13.el8_8.1", "lessThan": "*", "versionType": "rpm"}], "packageName": "rsyslog", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:rhel_e4s:8.8::appstream", "cpe:/a:redhat:rhel_tus:8.8::appstream"], "vendor": "Red Hat", "product": "Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions", "versions": [{"status": "unaffected", "version": "0:8.2102.0-13.el8_8.1", "lessThan": "*", "versionType": "rpm"}], "packageName": "rsyslog", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:enterprise_linux:9::appstream"], "vendor": "Red Hat", "product": "Red Hat Enterprise Linux 9", "versions": [{"status": "unaffected", "version": "0:8.2510.0-2.el9_8.2", "lessThan": "*", "versionType": "rpm"}], "packageName": "rsyslog", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:rhel_e4s:9.2::appstream"], "vendor": "Red Hat", "product": "Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions", "versions": [{"status": "unaffected", "version": "0:8.2102.0-113.el9_2.3", "lessThan": "*", "versionType": "rpm"}], "packageName": "rsyslog", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:rhel_e4s:9.4::appstream"], "vendor": "Red Hat", "product": "Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions", "versions": [{"status": "unaffected", "version": "0:8.2310.0-4.el9_4.2", "lessThan": "*", "versionType": "rpm"}], "packageName": "rsyslog", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:rhel_eus:9.6::appstream"], "vendor": "Red Hat", "product": "Red Hat Enterprise Linux 9.6 Extended Update Support", "versions": [{"status": "unaffected", "version": "0:8.2412.0-1.el9_6.2", "lessThan": "*", "versionType": "rpm"}], "packageName": "rsyslog", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:rhui:5::el9"], "vendor": "Red Hat", "product": "Red Hat Update Infrastructure 5", "versions": [{"status": "unaffected", "version": "1790241900", "lessThan": "*", "versionType": "rpm"}], "packageName": "rhui5/haproxy-rhel9", "collectionURL": "https://catalog.redhat.com/software/containers/", "defaultStatus": "affected"}, {"cpes": ["cpe:/o:redhat:enterprise_linux:6"], "vendor": "Red Hat", "product": "Red Hat Enterprise Linux 6", "packageName": "rsyslog", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "unaffected"}, {"cpes": ["cpe:/o:redhat:enterprise_linux:6"], "vendor": "Red Hat", "product": "Red Hat Enterprise Linux 6", "packageName": "rsyslog7", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "unaffected"}, {"cpes": ["cpe:/o:redhat:enterprise_linux:7"], "vendor": "Red Hat", "product": "Red Hat Enterprise Linux 7", "packageName": "rsyslog", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}]}], "published": "2026-08-27T17:20:29.367", "references": [{"url": "https://access.redhat.com/errata/RHSA-2026:69540", "source": "secalert@redhat.com"}, {"url": "https://access.redhat.com/errata/RHSA-2026:69541", "source": "secalert@redhat.com"}, {"url": "https://access.redhat.com/errata/RHSA-2026:71603", "source": "secalert@redhat.com"}, {"url": "https://access.redhat.com/errata/RHSA-2026:80817", "source": "secalert@redhat.com"}, {"url": "https://access.redhat.com/errata/RHSA-2026:81321", "source": "secalert@redhat.com"}, {"url": "https://access.redhat.com/errata/RHSA-2026:84576", "source": "secalert@redhat.com"}, {"url": "https://access.redhat.com/errata/RHSA-2026:86124", "source": "secalert@redhat.com"}, {"url": "https://access.redhat.com/errata/RHSA-2026:87408", "source": "secalert@redhat.com"}, {"url": "https://access.redhat.com/errata/RHSA-2026:90349", "source": "secalert@redhat.com"}, {"url": "https://access.redhat.com/errata/RHSA-2026:91582", "source": "secalert@redhat.com"}, {"url": "https://access.redhat.com/security/cve/CVE-2026-78002", "source": "secalert@redhat.com"}, {"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2521135", "source": "secalert@redhat.com"}, {"url": "https://github.com/rsyslog/rsyslog/security/advisories/GHSA-g72f-gc6v-f2w3", "source": "secalert@redhat.com"}, {"url": "http://www.openwall.com/lists/oss-security/2026/08/29/1", "source": "af854a3a-2127-422b-91ae-364da2661108"}], "vulnStatus": "Awaiting Analysis", "weaknesses": [{"type": "Secondary", "source": "secalert@redhat.com", "description": [{"lang": "en", "value": "CWE-131"}]}], "descriptions": [{"lang": "en", "value": "A flaw was found in rsyslog. An unauthenticated remote attacker can trigger a heap buffer overflow in the RainerScript `replace()` function by sending specially crafted syslog messages. This vulnerability arises from an incorrect buffer size calculation during string replacement, causing memory corruption. Successful exploitation can lead to a denial of service (DoS) for the affected system."}], "lastModified": "2026-10-30T18:18:13.397", "sourceIdentifier": "secalert@redhat.com"}