{"schema_version":"1.7.5","id":"GHSA-hhq2-3832-xxcv","published":"2026-05-01T09:30:25Z","modified":"2026-07-02T12:56:15.206675336Z","aliases":["CVE-2026-43001","PYSEC-2026-602"],"related":["CGA-px25-jx2m-rj34"],"summary":"OpenStack Keystone has an Incorrect Authorization Issue","details":"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.","affected":[{"package":{"name":"keystone","ecosystem":"PyPI","purl":"pkg:pypi/keystone"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"13.0.0"},{"last_affected":"29.0.1"}]}],"versions":["13.0.2","13.0.3","13.0.4","14.0.0","14.0.1","14.1.0","14.2.0","15.0.0","15.0.0.0rc1","15.0.0.0rc2","15.0.1","16.0.0","16.0.0.0rc1","16.0.0.0rc2","16.0.1","16.0.2","17.0.0","17.0.0.0rc1","17.0.0.0rc2","17.0.1","18.0.0","18.0.0.0rc1","18.1.0","19.0.0","19.0.0.0rc1","19.0.0.0rc2","19.0.1","20.0.0","20.0.0.0rc1","20.0.1","21.0.0","21.0.0.0rc1","21.0.1","22.0.0","22.0.0.0rc1","22.0.1","22.0.2","23.0.0","23.0.0.0rc1","23.0.1","23.0.2","24.0.0","24.0.0.0rc1","24.1.0","25.0.0","25.0.0.0rc1","26.0.0","26.0.0.0rc1","26.1.0","26.1.1","27.0.0","27.0.0.0rc1","27.0.1","28.0.0","28.0.0.0rc1","28.0.1","29.0.0","29.0.0.0rc1","29.0.1"],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/05/GHSA-hhq2-3832-xxcv/GHSA-hhq2-3832-xxcv.json"}}],"references":[{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-43001"},{"type":"WEB","url":"https://bugs.launchpad.net/keystone/+bug/2149775"},{"type":"PACKAGE","url":"https://review.opendev.org/c/openstack/keystone"},{"type":"WEB","url":"https://review.opendev.org/c/openstack/keystone/+/985804"},{"type":"WEB","url":"https://security.openstack.org/ossa/OSSA-2026-015.html"}],"database_specific":{"cwe_ids":["CWE-863"],"github_reviewed":true,"github_reviewed_at":"2026-05-07T02:39:59Z","nvd_published_at":"2026-05-01T09:16:17Z","severity":"HIGH"},"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:L"}]}