CVE-2026-5367

{"id": "CVE-2026-5367", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Secondary", "source": "secalert@redhat.com", "cvssData": {"scope": "CHANGED", "version": "3.1", "baseScore": 8.6, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 4.0, "exploitabilityScore": 3.9}]}, "published": "2026-04-24T13:16:21.990", "references": [{"url": "https://access.redhat.com/errata/RHSA-2026:11694", "source": "secalert@redhat.com"}, {"url": "https://access.redhat.com/errata/RHSA-2026:11695", "source": "secalert@redhat.com"}, {"url": "https://access.redhat.com/errata/RHSA-2026:11696", "source": "secalert@redhat.com"}, {"url": "https://access.redhat.com/errata/RHSA-2026:11698", "source": "secalert@redhat.com"}, {"url": "https://access.redhat.com/errata/RHSA-2026:11700", "source": "secalert@redhat.com"}, {"url": "https://access.redhat.com/errata/RHSA-2026:11701", "source": "secalert@redhat.com"}, {"url": "https://access.redhat.com/errata/RHSA-2026:11702", "source": "secalert@redhat.com"}, {"url": "https://access.redhat.com/security/cve/CVE-2026-5367", "source": "secalert@redhat.com"}, {"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2455863", "source": "secalert@redhat.com"}, {"url": "http://www.openwall.com/lists/oss-security/2026/04/20/3", "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "http://www.openwall.com/lists/oss-security/2026/04/20/5", "source": "af854a3a-2127-422b-91ae-364da2661108"}], "vulnStatus": "Awaiting Analysis", "weaknesses": [{"type": "Secondary", "source": "secalert@redhat.com", "description": [{"lang": "en", "value": "CWE-130"}]}], "descriptions": [{"lang": "en", "value": "A flaw was found in OVN (Open Virtual Network). A remote attacker, by sending crafted DHCPv6 (Dynamic Host Configuration Protocol for IPv6) SOLICIT packets with an inflated Client ID length, could cause the ovn-controller to read beyond the bounds of a packet. This out-of-bounds read can lead to the disclosure of sensitive information stored in heap memory, which is then returned to the attacker's virtual machine port."}], "lastModified": "2026-04-29T18:16:04.980", "sourceIdentifier": "secalert@redhat.com"}