{"items":[{"id":"NVI-00011896","kind":"vulnerability","title":"Duplicate Advisory: Vikunja: Link-share principal-type confusion enables cross-account team removal, bot takeover, and roster disclosure","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"withdrawn","identifiers":["GHSA-9xwc-vwww-qqmw"],"plain_summary":"GitHub lists this reviewed advisory for code.vikunja.io/api. 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-5621d32e06ff4be59ba96475a6c78079"],"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":"2026-10-09T20:43:23.000Z","value":"7.5 high","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-5621d32e06ff4be59ba96475a6c78079"}],"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-5621d32e06ff4be59ba96475a6c78079","url":"https://github.com/advisories/GHSA-9xwc-vwww-qqmw","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-9xwc-vwww-qqmw","publisher":"GitHub Advisory Database","observed_at":"2026-11-01T00:58:23.763Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-5621d32e06ff4be59ba96475a6c78079"],"technology":"code.vikunja.io/api","known_exclusions":[],"conditions_summary":"### Duplicate Advisory\nThis advisory has been withdrawn because it is a duplicate of GHSA-32r8-5843-4qw2. This link is maintained to preserve external references.\n\n### Original Description\nVikunja through 2.4.0 contains a principal-type confusion vulnerability where LinkSharing principals with id N are treated as user principals with users.id == N at three permission checks lacking type guards. Attackers with a link-share JWT can remove victims from teams, enumerate and delete victim bot users, or read team rosters by exploiting id collisions in the autoincrement space.","public_affected_ranges":["<= 2.4.0"]}],"null_published_at":"2026-11-01T01:03:56.614Z","source_updated_at":"2026-10-09T20:43:23.000Z","source_disclosed_at":"2026-08-19T15:32:33.000Z","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":"2026-11-01T00:58:23.763Z"}],"next_cursor":null,"snapshot_revision":"42594"}