{"items":[{"id":"NVI-00016319","kind":"vulnerability","title":"OpenStack Neutron: Neutron port RBAC policy bypass allows project managers to set trusted device owners on shared networks","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-qmc5-gv6v-8p22","CVE-2026-50266"],"plain_summary":"GitHub lists this reviewed advisory for neutron. Published version ranges and source prerequisites are shown below; this is not an inspection of a visitor’s application.","review_status":"source_listed","control_topics":[],"public_actions":[{"summary":"Identify the exact component and deployed version, examine the linked publisher’s conditions, and retain evidence of any mitigation.","source_ids":["sr-67d9be28fc547748091d23a79f309583"],"action_type":"investigate","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null}],"schema_version":"1.1.0","source_metrics":[{"kind":"CVSS","as_of":"2026-07-15T22:40:06.000Z","value":"2.2 low","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-67d9be28fc547748091d23a79f309583"}],"why_it_matters":"Published affected context helps an owner decide what evidence to gather. This report has not examined your application.","related_sources":[{"id":"sr-67d9be28fc547748091d23a79f309583","url":"https://github.com/advisories/GHSA-qmc5-gv6v-8p22","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-qmc5-gv6v-8p22","publisher":"GitHub Advisory Database","observed_at":"2026-11-04T09:59:43.724Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-67d9be28fc547748091d23a79f309583"],"technology":"neutron","known_exclusions":[],"conditions_summary":"In OpenStack Neutron before 28.0.1, a project manager can create or update a port on a shared network owned by another project and set device_owner to a value that has \"network:\" at the beginning (\"network:dhcp\" for example). The default port RBAC policies incorrectly included PROJECT_MANAGER without requiring network ownership, allowing any project manager to obtain trusted network-service port behavior on shared networks. Depending on backend and deployment, this can bypass anti-spoofing and security group protections, enabling DHCP, MAC, or IP spoofing against other tenants on the shared network. This is a regression of CVE-2015-5240 (OSSA-2015-018).","public_affected_ranges":["< 28.0.1"]}],"null_published_at":"2026-11-04T10:04:27.931Z","source_updated_at":"2026-07-15T22:40:06.000Z","source_disclosed_at":"2026-06-04T18:30:32.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"First indexed by Null; source disclosure date is shown separately.","null_first_observed_at":"2026-11-04T09:59:43.724Z"}],"next_cursor":null,"snapshot_revision":"42594"}