CVE-2026-35091

{"id": "CVE-2026-35091", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Secondary", "source": "secalert@redhat.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 8.2, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "LOW"}, "impactScore": 4.2, "exploitabilityScore": 3.9}]}, "published": "2026-04-01T14:16:57.040", "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-2026-35091", "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=2453813", "tags": ["Issue Tracking"], "source": "secalert@redhat.com"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Secondary", "source": "secalert@redhat.com", "description": [{"lang": "en", "value": "CWE-253"}]}], "descriptions": [{"lang": "en", "value": "A flaw was found in Corosync. A remote unauthenticated attacker can exploit a wrong return value vulnerability in the Corosync membership commit token sanity check by sending a specially crafted User Datagram Protocol (UDP) packet. This can lead to an out-of-bounds read, causing a denial of service (DoS) and potentially disclosing limited memory contents"}], "lastModified": "2026-05-26T16:16:23.387", "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"}