{"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"}

{}

{"cveTags": [], "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."}], "id": "CVE-2026-43001", "lastModified": "2026-05-01T09:16:17.273", "metrics": {"cvssMetricV31": [{"cvssData": {"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"}, "exploitabilityScore": 1.3, "impactScore": 6.0, "source": "cve@mitre.org", "type": "Secondary"}]}, "published": "2026-05-01T09:16:17.273", "references": [{"source": "cve@mitre.org", "url": "https://bugs.launchpad.net/keystone/+bug/2149775"}, {"source": "cve@mitre.org", "url": "https://review.opendev.org/c/openstack/keystone/+/985804"}], "sourceIdentifier": "cve@mitre.org", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-863"}], "source": "cve@mitre.org", "type": "Primary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[13,29]"}}], "enrichment": {"confidence": 95.0, "confidence_source": "inferred", "scores": [{"score": 95.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Keystone", "source": "cna", "vendor": "OpenStack"}, "product": "keystone", "vendor": "openstack"}], "created": "2026-05-01T09:30:13.904650+00:00", "updated": "2026-05-01T09:30:13.904742+00:00", "vendors": ["openstack", "openstack$PRODUCT$keystone"]}