CVE-2026-43000

설명

An issue was discovered in OpenStack Keystone before 29.0.2. When combined with an application credential impersonation vulnerability, an attacker with the member role on a project can escalate to admin by chaining unrestricted application credentials with Keystone trusts. The impersonated token carries the victim's identity, which passes the trustor validation check. Keystone then validates the delegated roles against the victim's actual role assignments in the database, not the roles on the requesting token. This allows the attacker to create a trust delegating the victim's admin role to...

영향 제품·버전

제품 OpenStack Keystone, Red Hat OpenStack Platform 13 (Queens), Red Hat OpenStack Platform 16.2

영향 버전 OpenStack Keystone, Red Hat OpenStack Platform 13 (Queens), Red Hat OpenStack Platform 16.2 >= 14.0.0 < 27.0.2, >= 28.0.0 < 28.0.2, >= 29.0.0 < 29.0.2

수정 버전 OpenStack Keystone, Red Hat OpenStack Platform 13 (Queens), Red Hat OpenStack Platform 16.2 27.0.2, 28.0.2, 29.0.2

기술 정보

CVSS 벡터 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CWE CWE-266, CWE-863

EPSS 데이터 기준일 2026.08.04