CVE-2026-42999

01/תיאור (מקור, אנגלית)

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).

02/מוצרים מושפעים

openstack: keystone

03/קישורים5

• security.openstack.org/ossa/OSSA-2026-015.html PatchVendor Advisory
• bugs.launchpad.net/keystone/+bug/2148398 ExploitIssue TrackingPatchThird Party Advisory
• access.redhat.com/security/cve/CVE-2026-42999
• bugzilla.redhat.com/show_bug.cgi?id=2482840
• security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-4299‮…