{"items":[{"id":"NVI-00008924","kind":"vulnerability","title":"Duplicate Advisory: Keycloak vulnerable to cross-site scripting (xss) via case-insensitive uri validation bypass","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"withdrawn","identifiers":["GHSA-37j9-56gh-j2r7"],"plain_summary":"GitHub lists this reviewed advisory for org.keycloak:keycloak-services.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-32096598e66ef376a55002a06bd86c43"],"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":"2026-10-29T16:38:50.000Z","value":"7.3 high","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-32096598e66ef376a55002a06bd86c43"}],"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-32096598e66ef376a55002a06bd86c43","url":"https://github.com/advisories/GHSA-37j9-56gh-j2r7","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-37j9-56gh-j2r7","publisher":"GitHub Advisory Database","observed_at":"2026-10-31T21:55:49.621Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-32096598e66ef376a55002a06bd86c43"],"technology":"org.keycloak:keycloak-services","known_exclusions":[],"conditions_summary":"### Duplicate Advisory\nThis advisory has been withdrawn because it is a duplicate of GHSA-v3f7-2p4r-mwfw. This link is maintained to preserve external references.\n\n### Original Description\nA flaw was found in Keycloak. A remote attacker with administrative privileges, specifically those with `manage-client` permission or access to client registration endpoints, could bypass client Uniform Resource Identifier (URI) validation. This is achieved by registering a malicious client with a specially crafted redirect URI using a case-insensitive `javascript:` or `data:` scheme. This Cross-Site Scripting (XSS) vulnerability allows for arbitrary code execution in the Keycloak origin when a victim clicks the crafted link, such as in the logout flow or the Admin Console.","public_affected_ranges":["< 26.6.4"]}],"null_published_at":"2026-10-31T22:13:27.123Z","source_updated_at":"2026-10-29T16:38:50.000Z","source_disclosed_at":"2026-06-25T18:30:41.000Z","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":"2026-10-31T21:55:49.621Z"}],"next_cursor":null,"snapshot_revision":"42594"}