In OpenStack Keystone before 29.0.3, any authenticated user holding role:reader on any project can list every project-scoped role assignment under any domain by passing a domain ID as scope.project.id with include_subtree to the GET /v3/role_assignments endpoint. The domain's project record has domain_id=null, causing the policy domain_id check to pass for any caller. With include_names, the response discloses the names and home-domain IDs of every user, group, project, and role involved. The literal "default" domain ID works against any deployment created with keystone-manage bootstrap. An attacker can harvest domain IDs from the response and repeat the query to map role assignments across the entire cloud. This is caused by misuse of "None" in
list_role_assignments_for_tree.
list_role_assignments_for_tree.
Metrics
Affected Vendors & Products
Advisories
No advisories yet.
Fixes
Solution
No solution given by the vendor.
Workaround
No workaround given by the vendor.
References
| Link | Providers |
|---|---|
| https://launchpad.net/bugs/2154645 |
|
History
Thu, 27 Aug 2026 00:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | In OpenStack Keystone before 29.0.3, any authenticated user holding role:reader on any project can list every project-scoped role assignment under any domain by passing a domain ID as scope.project.id with include_subtree to the GET /v3/role_assignments endpoint. The domain's project record has domain_id=null, causing the policy domain_id check to pass for any caller. With include_names, the response discloses the names and home-domain IDs of every user, group, project, and role involved. The literal "default" domain ID works against any deployment created with keystone-manage bootstrap. An attacker can harvest domain IDs from the response and repeat the query to map role assignments across the entire cloud. This is caused by misuse of "None" in list_role_assignments_for_tree. | |
| First Time appeared |
Openstack
Openstack keystone |
|
| Weaknesses | CWE-843 | |
| CPEs | cpe:2.3:a:openstack:keystone:*:*:*:*:*:*:*:* | |
| Vendors & Products |
Openstack
Openstack keystone |
|
| References |
| |
| Metrics |
cvssV4_0
|
Projects
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Status: PUBLISHED
Assigner: mitre
Published:
Updated: 2026-08-26T23:16:43.059Z
Reserved: 2026-08-25T21:24:11.765Z
Link: CVE-2026-80183
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OpenCVE Enrichment
No data.
Weaknesses