{"dataType": "CVE_RECORD", "cveMetadata": {"state": "PUBLISHED", "cveId": "CVE-2026-42999", "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "assignerShortName": "mitre", "dateUpdated": "2026-05-28T18:34:00.873Z", "dateReserved": "2026-05-01T00:00:00.000Z", "datePublished": "2026-05-28T00:00:00.000Z"}, "containers": {"cna": {"affected": [{"defaultStatus": "unaffected", "product": "Keystone", "vendor": "OpenStack", "versions": [{"lessThan": "27.0.2", "status": "affected", "version": "14.0.0", "versionType": "semver"}, {"lessThan": "28.0.2", "status": "affected", "version": "28.0.0", "versionType": "semver"}, {"lessThan": "29.0.2", "status": "affected", "version": "29.0.0", "versionType": "semver"}]}], "descriptions": [{"lang": "en", "value": "An issue was discovered in OpenStack Keystone before 29.0.2. The Keystone RBAC policy enforcer in enforce_call unconditionally merges the raw JSON request body into the policy enforcement dictionary via policy_dict.update(json_input.copy()), overwriting trusted target data that was previously set from database lookups. Because flask.request.get_json is called with force=True, this works regardless of Content-Type or HTTP method. Any authenticated user can inject arbitrary policy target attributes (e.g., user_id, project_id) into the request body to bypass RBAC checks and perform unauthorized operations on resources belonging to other users or projects. This was introduced in commit 5ea59f52 (Rocky/14.0.0)."}], "metrics": [{"cvssV3_1": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "LOW", "baseScore": 6, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "LOW", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:L/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": "2026-05-28T18:34:00.873Z"}, "references": [{"url": "https://bugs.launchpad.net/keystone/+bug/2148398"}, {"url": "https://security.openstack.org/ossa/OSSA-2026-015.html"}], "x_generator": {"engine": "enrichogram 0.0.1"}, "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:openstack:keystone:*:*:*:*:*:*:*:*", "versionStartIncluding": "14.0.0", "versionEndExcluding": "27.0.2"}, {"vulnerable": true, "criteria": "cpe:2.3:a:openstack:keystone:*:*:*:*:*:*:*:*", "versionStartIncluding": "28.0.0", "versionEndExcluding": "28.0.2"}, {"vulnerable": true, "criteria": "cpe:2.3:a:openstack:keystone:*:*:*:*:*:*:*:*", "versionStartIncluding": "29.0.0", "versionEndExcluding": "29.0.2"}]}]}]}}, "dataVersion": "5.2"}

{}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "An issue was discovered in OpenStack Keystone before 29.0.2. The Keystone RBAC policy enforcer in enforce_call unconditionally merges the raw JSON request body into the policy enforcement dictionary via policy_dict.update(json_input.copy()), overwriting trusted target data that was previously set from database lookups. Because flask.request.get_json is called with force=True, this works regardless of Content-Type or HTTP method. Any authenticated user can inject arbitrary policy target attributes (e.g., user_id, project_id) into the request body to bypass RBAC checks and perform unauthorized operations on resources belonging to other users or projects. This was introduced in commit 5ea59f52 (Rocky/14.0.0)."}], "id": "CVE-2026-42999", "lastModified": "2026-05-28T19:16:37.630", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "LOW", "baseScore": 6.0, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "LOW", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:L/A:L", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 3.7, "source": "cve@mitre.org", "type": "Secondary"}]}, "published": "2026-05-28T19:16:37.630", "references": [{"source": "cve@mitre.org", "url": "https://bugs.launchpad.net/keystone/+bug/2148398"}, {"source": "cve@mitre.org", "url": "https://security.openstack.org/ossa/OSSA-2026-015.html"}], "sourceIdentifier": "cve@mitre.org", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-863"}], "source": "cve@mitre.org", "type": "Primary"}]}

{}

{}