{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-86845",
        "assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
        "state": "PUBLISHED",
        "assignerShortName": "redhat",
        "dateReserved": "2026-09-08T14:54:06.881Z",
        "datePublished": "2026-10-14T17:52:06.749Z",
        "dateUpdated": "2026-10-15T14:50:01.364Z"
    },
    "containers": {
        "cna": {
            "title": "Dpdk: dpdk: guest-triggered use-after-free and type confusion in vhost-crypto session cleanup",
            "metrics": [
                {
                    "other": {
                        "content": {
                            "value": "Moderate",
                            "namespace": "https://access.redhat.com/security/updates/classification/"
                        },
                        "type": "Red Hat severity rating"
                    }
                },
                {
                    "cvssV3_1": {
                        "attackComplexity": "LOW",
                        "attackVector": "LOCAL",
                        "availabilityImpact": "HIGH",
                        "baseScore": 6.5,
                        "baseSeverity": "MEDIUM",
                        "confidentialityImpact": "NONE",
                        "integrityImpact": "NONE",
                        "privilegesRequired": "LOW",
                        "scope": "CHANGED",
                        "userInteraction": "NONE",
                        "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H",
                        "version": "3.1"
                    },
                    "format": "CVSS"
                }
            ],
            "descriptions": [
                {
                    "lang": "en",
                    "value": "A flaw was found in DPDK lib/vhost vhost-crypto. Session cleanup can leave a stale cached session pointer, and the data path does not check the session type before attaching it, leading to use-after-free or type confusion in the host vhost-crypto backend."
                }
            ],
            "affected": [
                {
                    "vendor": "Red Hat",
                    "product": "Fast Datapath for RHEL 10",
                    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                    "packageName": "grout",
                    "defaultStatus": "affected",
                    "cpes": [
                        "cpe:/o:redhat:enterprise_linux:10::fastdatapath"
                    ]
                },
                {
                    "vendor": "Red Hat",
                    "product": "Fast Datapath for RHEL 10",
                    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                    "packageName": "openvswitch3.5",
                    "defaultStatus": "affected",
                    "cpes": [
                        "cpe:/o:redhat:enterprise_linux:10::fastdatapath"
                    ]
                },
                {
                    "vendor": "Red Hat",
                    "product": "Fast Datapath for RHEL 10",
                    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                    "packageName": "openvswitch3.6",
                    "defaultStatus": "affected",
                    "cpes": [
                        "cpe:/o:redhat:enterprise_linux:10::fastdatapath"
                    ]
                },
                {
                    "vendor": "Red Hat",
                    "product": "Fast Datapath for RHEL 8",
                    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                    "packageName": "openvswitch2.11",
                    "defaultStatus": "affected",
                    "cpes": [
                        "cpe:/o:redhat:enterprise_linux:8::fastdatapath"
                    ]
                },
                {
                    "vendor": "Red Hat",
                    "product": "Fast Datapath for RHEL 8",
                    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                    "packageName": "openvswitch2.12",
                    "defaultStatus": "affected",
                    "cpes": [
                        "cpe:/o:redhat:enterprise_linux:8::fastdatapath"
                    ]
                },
                {
                    "vendor": "Red Hat",
                    "product": "Fast Datapath for RHEL 8",
                    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                    "packageName": "openvswitch2.13",
                    "defaultStatus": "affected",
                    "cpes": [
                        "cpe:/o:redhat:enterprise_linux:8::fastdatapath"
                    ]
                },
                {
                    "vendor": "Red Hat",
                    "product": "Fast Datapath for RHEL 8",
                    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                    "packageName": "openvswitch2.15",
                    "defaultStatus": "affected",
                    "cpes": [
                        "cpe:/o:redhat:enterprise_linux:8::fastdatapath"
                    ]
                },
                {
                    "vendor": "Red Hat",
                    "product": "Fast Datapath for RHEL 8",
                    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                    "packageName": "openvswitch2.16",
                    "defaultStatus": "affected",
                    "cpes": [
                        "cpe:/o:redhat:enterprise_linux:8::fastdatapath"
                    ]
                },
                {
                    "vendor": "Red Hat",
                    "product": "Fast Datapath for RHEL 8",
                    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                    "packageName": "openvswitch2.17",
                    "defaultStatus": "affected",
                    "cpes": [
                        "cpe:/o:redhat:enterprise_linux:8::fastdatapath"
                    ]
                },
                {
                    "vendor": "Red Hat",
                    "product": "Fast Datapath for RHEL 8",
                    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                    "packageName": "openvswitch3.1",
                    "defaultStatus": "affected",
                    "cpes": [
                        "cpe:/o:redhat:enterprise_linux:8::fastdatapath"
                    ]
                },
                {
                    "vendor": "Red Hat",
                    "product": "Fast Datapath for RHEL 9",
                    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                    "packageName": "grout",
                    "defaultStatus": "affected",
                    "cpes": [
                        "cpe:/o:redhat:enterprise_linux:9::fastdatapath"
                    ]
                },
                {
                    "vendor": "Red Hat",
                    "product": "Fast Datapath for RHEL 9",
                    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                    "packageName": "openvswitch2.17",
                    "defaultStatus": "affected",
                    "cpes": [
                        "cpe:/o:redhat:enterprise_linux:9::fastdatapath"
                    ]
                },
                {
                    "vendor": "Red Hat",
                    "product": "Fast Datapath for RHEL 9",
                    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                    "packageName": "openvswitch3.0",
                    "defaultStatus": "affected",
                    "cpes": [
                        "cpe:/o:redhat:enterprise_linux:9::fastdatapath"
                    ]
                },
                {
                    "vendor": "Red Hat",
                    "product": "Fast Datapath for RHEL 9",
                    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                    "packageName": "openvswitch3.1",
                    "defaultStatus": "affected",
                    "cpes": [
                        "cpe:/o:redhat:enterprise_linux:9::fastdatapath"
                    ]
                },
                {
                    "vendor": "Red Hat",
                    "product": "Fast Datapath for RHEL 9",
                    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                    "packageName": "openvswitch3.2",
                    "defaultStatus": "affected",
                    "cpes": [
                        "cpe:/o:redhat:enterprise_linux:9::fastdatapath"
                    ]
                },
                {
                    "vendor": "Red Hat",
                    "product": "Fast Datapath for RHEL 9",
                    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                    "packageName": "openvswitch3.3",
                    "defaultStatus": "affected",
                    "cpes": [
                        "cpe:/o:redhat:enterprise_linux:9::fastdatapath"
                    ]
                },
                {
                    "vendor": "Red Hat",
                    "product": "Fast Datapath for RHEL 9",
                    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                    "packageName": "openvswitch3.4",
                    "defaultStatus": "affected",
                    "cpes": [
                        "cpe:/o:redhat:enterprise_linux:9::fastdatapath"
                    ]
                },
                {
                    "vendor": "Red Hat",
                    "product": "Fast Datapath for RHEL 9",
                    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                    "packageName": "openvswitch3.5",
                    "defaultStatus": "affected",
                    "cpes": [
                        "cpe:/o:redhat:enterprise_linux:9::fastdatapath"
                    ]
                },
                {
                    "vendor": "Red Hat",
                    "product": "Fast Datapath for RHEL 9",
                    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                    "packageName": "openvswitch3.6",
                    "defaultStatus": "affected",
                    "cpes": [
                        "cpe:/o:redhat:enterprise_linux:9::fastdatapath"
                    ]
                },
                {
                    "vendor": "Red Hat",
                    "product": "Red Hat Enterprise Linux 10",
                    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                    "packageName": "dpdk",
                    "defaultStatus": "affected",
                    "cpes": [
                        "cpe:/o:redhat:enterprise_linux:10"
                    ]
                },
                {
                    "vendor": "Red Hat",
                    "product": "Red Hat Enterprise Linux 8",
                    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                    "packageName": "dpdk",
                    "defaultStatus": "affected",
                    "cpes": [
                        "cpe:/o:redhat:enterprise_linux:8"
                    ]
                },
                {
                    "vendor": "Red Hat",
                    "product": "Red Hat Enterprise Linux 9",
                    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                    "packageName": "dpdk",
                    "defaultStatus": "affected",
                    "cpes": [
                        "cpe:/o:redhat:enterprise_linux:9"
                    ]
                },
                {
                    "vendor": "Red Hat",
                    "product": "Red Hat OpenShift Container Platform 4",
                    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                    "packageName": "openvswitch2.17",
                    "defaultStatus": "affected",
                    "cpes": [
                        "cpe:/a:redhat:openshift:4"
                    ]
                },
                {
                    "vendor": "Red Hat",
                    "product": "Red Hat OpenShift Container Platform 4",
                    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                    "packageName": "openvswitch3.0",
                    "defaultStatus": "affected",
                    "cpes": [
                        "cpe:/a:redhat:openshift:4"
                    ]
                },
                {
                    "vendor": "Red Hat",
                    "product": "Red Hat OpenShift Container Platform 4",
                    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                    "packageName": "openvswitch3.1",
                    "defaultStatus": "affected",
                    "cpes": [
                        "cpe:/a:redhat:openshift:4"
                    ]
                },
                {
                    "vendor": "Red Hat",
                    "product": "Red Hat OpenStack Platform 13 (Queens)",
                    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                    "packageName": "openvswitch",
                    "defaultStatus": "affected",
                    "cpes": [
                        "cpe:/a:redhat:openstack:13"
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://access.redhat.com/security/cve/CVE-2026-86845",
                    "tags": [
                        "vdb-entry",
                        "x_refsource_REDHAT"
                    ]
                },
                {
                    "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2529844",
                    "name": "RHBZ#2529844",
                    "tags": [
                        "issue-tracking",
                        "x_refsource_REDHAT"
                    ]
                }
            ],
            "datePublic": "2026-10-14T15:01:17.409Z",
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "cweId": "CWE-825",
                            "description": "Expired Pointer Dereference",
                            "lang": "en",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "x_redhatCweChain": "CWE-825: Expired Pointer Dereference",
            "workarounds": [
                {
                    "lang": "en",
                    "value": "Do not attach a virtio-crypto vhost-user backend to untrusted guests."
                }
            ],
            "timeline": [
                {
                    "lang": "en",
                    "time": "2026-09-08T12:39:30.106Z",
                    "value": "Reported to Red Hat."
                },
                {
                    "lang": "en",
                    "time": "2026-10-14T15:01:17.409Z",
                    "value": "Made public."
                }
            ],
            "credits": [
                {
                    "lang": "en",
                    "value": "Red Hat would like to thank Anthropic Research for reporting this issue."
                }
            ],
            "providerMetadata": {
                "orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
                "shortName": "redhat",
                "dateUpdated": "2026-10-14T17:52:06.749Z"
            },
            "x_generator": {
                "engine": "cvelib 1.8.0"
            }
        },
        "adp": [
            {
                "metrics": [
                    {
                        "other": {
                            "type": "ssvc",
                            "content": {
                                "timestamp": "2026-10-15T14:46:12.188388Z",
                                "id": "CVE-2026-86845",
                                "options": [
                                    {
                                        "Exploitation": "none"
                                    },
                                    {
                                        "Automatable": "no"
                                    },
                                    {
                                        "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": "2026-10-15T14:50:01.364Z"
                }
            }
        ]
    }
}