{"items":[{"id":"NVI-00017777","kind":"vulnerability","title":"Keycloak: Insufficient verification proof scoping enables identity provider account linking attack and account compromise","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-m6qj-3mpp-57v8","CVE-2026-9087"],"plain_summary":"GitHub lists this reviewed advisory for org.keycloak:keycloak-services. 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-62414e1cc516099f47da84e3e702fff2"],"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":"2026-06-26T09:30:46.000Z","value":"6.4 medium","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-62414e1cc516099f47da84e3e702fff2"}],"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-62414e1cc516099f47da84e3e702fff2","url":"https://github.com/advisories/GHSA-m6qj-3mpp-57v8","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-m6qj-3mpp-57v8","publisher":"GitHub Advisory Database","observed_at":"2026-11-05T19:05:53.922Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-62414e1cc516099f47da84e3e702fff2"],"technology":"org.keycloak:keycloak-services","known_exclusions":[],"conditions_summary":"A flaw was found in Keycloak. The cross-session verification proof is keyed only by (local userId,\nidpAlias) and is not bound to the upstream identity that was actually verified, so a second upstream account on the same IdP can consume it and get linked to the victim's local account.","public_affected_ranges":["< 26.6.3"]}],"null_published_at":"2026-11-05T19:10:21.467Z","source_updated_at":"2026-06-26T09:30:46.000Z","source_disclosed_at":"2026-05-20T18:31:36.000Z","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":"2026-11-05T19:05:53.922Z"}],"next_cursor":null,"snapshot_revision":"42594"}