{
    "dataType": "CVE_RECORD",
    "cveMetadata": {
        "state": "PUBLISHED",
        "cveId": "CVE-2026-43001",
        "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
        "assignerShortName": "mitre",
        "dateUpdated": "2026-05-01T07:53:34.311Z",
        "dateReserved": "2026-05-01T00:00:00.000Z",
        "datePublished": "2026-05-01T00:00:00.000Z"
    },
    "containers": {
        "cna": {
            "affected": [
                {
                    "defaultStatus": "unaffected",
                    "product": "Keystone",
                    "vendor": "OpenStack",
                    "versions": [
                        {
                            "lessThanOrEqual": "29",
                            "status": "affected",
                            "version": "13",
                            "versionType": "custom"
                        }
                    ]
                }
            ],
            "descriptions": [
                {
                    "lang": "en",
                    "value": "An issue was discovered in OpenStack Keystone 13 through 29. POST /v3/credentials did not validate that the caller-supplied project_id for an EC2-type credential matched the project of the authenticating application credential. This allowed an attacker holding an unrestricted application credential for project A to create an EC2 credential targeting project B; a subsequent /v3/ec2tokens exchange would then issue a Keystone token scoped to project B while still carrying the original app_cred_id, enabling cross-project lateral movement within the credential owner's role footprint."
                }
            ],
            "metrics": [
                {
                    "cvssV3_1": {
                        "attackComplexity": "HIGH",
                        "attackVector": "NETWORK",
                        "availabilityImpact": "LOW",
                        "baseScore": 7.9,
                        "baseSeverity": "HIGH",
                        "confidentialityImpact": "HIGH",
                        "integrityImpact": "HIGH",
                        "privilegesRequired": "HIGH",
                        "scope": "CHANGED",
                        "userInteraction": "NONE",
                        "vectorString": "CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:L",
                        "version": "3.1"
                    },
                    "format": "CVSS",
                    "scenarios": [
                        {
                            "lang": "en",
                            "value": "GENERAL"
                        }
                    ]
                }
            ],
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "cweId": "CWE-863",
                            "description": "CWE-863 Incorrect Authorization",
                            "lang": "en",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "providerMetadata": {
                "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
                "shortName": "mitre",
                "dateUpdated": "2026-05-01T07:53:34.311Z"
            },
            "references": [
                {
                    "url": "https://bugs.launchpad.net/keystone/+bug/2149775"
                },
                {
                    "url": "https://review.opendev.org/c/openstack/keystone/+/985804"
                }
            ],
            "x_generator": {
                "engine": "enrichogram 0.0.1"
            },
            "cpeApplicability": [
                {
                    "nodes": [
                        {
                            "operator": "OR",
                            "negate": false,
                            "cpeMatch": [
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:a:openstack:keystone:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "13",
                                    "versionEndIncluding": "29"
                                }
                            ]
                        }
                    ]
                }
            ]
        }
    },
    "dataVersion": "5.2"
}