CVE-2026-43001

{"id": "CVE-2026-43001", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-43001", "role": "CISA Coordinator", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "version": "2.0.3", "timestamp": "2026-05-01T13:28:01.589906Z"}}], "cvssMetricV31": [{"type": "Secondary", "source": "cve@mitre.org", "cvssData": {"scope": "CHANGED", "version": "3.1", "baseScore": 7.9, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:L", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "HIGH", "availabilityImpact": "LOW", "privilegesRequired": "HIGH", "confidentialityImpact": "HIGH"}, "impactScore": 6.0, "exploitabilityScore": 1.3}, {"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "CHANGED", "version": "3.1", "baseScore": 8.0, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "HIGH", "availabilityImpact": "HIGH", "privilegesRequired": "HIGH", "confidentialityImpact": "HIGH"}, "impactScore": 6.0, "exploitabilityScore": 1.3}, {"type": "Secondary", "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c", "cvssData": {"scope": "CHANGED", "version": "3.1", "baseScore": 8.0, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "HIGH", "availabilityImpact": "HIGH", "privilegesRequired": "HIGH", "confidentialityImpact": "HIGH"}, "impactScore": 6.0, "exploitabilityScore": 1.3}]}, "affected": [{"source": "cve@mitre.org", "affectedData": [{"vendor": "OpenStack", "product": "Keystone", "versions": [{"status": "affected", "version": "14.0.0", "lessThan": "27.0.2", "versionType": "semver"}, {"status": "affected", "version": "28.0.0", "lessThan": "28.0.2", "versionType": "semver"}, {"status": "affected", "version": "29.0.0", "lessThan": "29.0.2", "versionType": "semver"}], "defaultStatus": "unaffected"}]}, {"source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c", "affectedData": [{"cpes": ["cpe:/a:redhat:openstack:18.0::el9"], "vendor": "Red Hat", "product": "Red Hat OpenStack Services on OpenShift 18.0", "versions": [{"status": "unaffected", "version": "1:23.0.3-18.0.20260610133808.9e3dfb4.el9ost", "lessThan": "*", "versionType": "rpm"}], "packageName": "openstack-keystone", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:openstack:13"], "vendor": "Red Hat", "product": "Red Hat OpenStack Platform 13 (Queens)", "packageName": "rhosp13/openstack-keystone", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "unaffected"}, {"cpes": ["cpe:/a:redhat:openstack:16.2"], "vendor": "Red Hat", "product": "Red Hat OpenStack Platform 16.2", "packageName": "openstack-keystone", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:openstack:16.2"], "vendor": "Red Hat", "product": "Red Hat OpenStack Platform 16.2", "packageName": "rhosp-rhel8/openstack-keystone", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "unaffected"}, {"cpes": ["cpe:/a:redhat:openstack:17.1"], "vendor": "Red Hat", "product": "Red Hat OpenStack Platform 17.1", "packageName": "openstack-keystone", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:openstack:17.1"], "vendor": "Red Hat", "product": "Red Hat OpenStack Platform 17.1", "packageName": "rhosp-rhel9/openstack-keystone", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "unaffected"}, {"cpes": ["cpe:/a:redhat:openstack:18.0"], "vendor": "Red Hat", "product": "Red Hat OpenStack Platform 18.0", "packageName": "rhoso/openstack-keystone-rhel9", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "unaffected"}]}], "published": "2026-05-01T09:16:17.273", "references": [{"url": "https://bugs.launchpad.net/keystone/+bug/2149775", "tags": ["Exploit", "Issue Tracking", "Patch", "Third Party Advisory"], "source": "cve@mitre.org"}, {"url": "https://review.opendev.org/c/openstack/keystone/+/985804", "tags": ["Patch"], "source": "cve@mitre.org"}, {"url": "https://security.openstack.org/ossa/OSSA-2026-015.html", "tags": ["Patch", "Vendor Advisory"], "source": "cve@mitre.org"}, {"url": "https://access.redhat.com/errata/RHSA-2026:39808", "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"}, {"url": "https://access.redhat.com/errata/RHSA-2026:54757", "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"}, {"url": "https://access.redhat.com/security/cve/CVE-2026-43001", "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"}, {"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2464305", "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"}, {"url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-43001.json", "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Secondary", "source": "cve@mitre.org", "description": [{"lang": "en", "value": "CWE-863"}]}, {"type": "Secondary", "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c", "description": [{"lang": "en", "value": "CWE-1288"}]}], "descriptions": [{"lang": "en", "value": "An issue was discovered in OpenStack Keystone before 29.0.2. 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."}, {"lang": "es", "value": "Se descubri\u00f3 un problema en OpenStack Keystone versiones 13 a 29. POST /v3/credentials no validaba que el project_id proporcionado por el llamador para una credencial de tipo EC2 coincidiera con el proyecto de la credencial de aplicaci\u00f3n autenticadora. Esto permit\u00eda a un atacante que pose\u00eda una credencial de aplicaci\u00f3n sin restricciones para el proyecto A crear una credencial EC2 dirigida al proyecto B; un intercambio posterior de /v3/ec2tokens emitir\u00eda entonces un token de Keystone con \u00e1mbito en el proyecto B mientras a\u00fan portaba el app_cred_id original, lo que permit\u00eda el movimiento lateral entre proyectos dentro de la huella de rol del propietario de la credencial."}], "lastModified": "2026-10-26T21:10:00.170", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:openstack:keystone:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "541F5133-3C0B-4973-BEDC-1A7D4BA292CA", "versionEndExcluding": "27.0.2", "versionStartIncluding": "14.0.0"}, {"criteria": "cpe:2.3:a:openstack:keystone:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "EE1CC117-FDCA-493D-B811-57BC9ADC9260", "versionEndExcluding": "28.0.2", "versionStartIncluding": "28.0.0"}, {"criteria": "cpe:2.3:a:openstack:keystone:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "594C43ED-BCAE-43C2-9B5F-5D4AF2F2AC08", "versionEndExcluding": "29.0.2", "versionStartIncluding": "29.0.0"}], "operator": "OR"}]}], "sourceIdentifier": "cve@mitre.org"}