{"items":[{"id":"NVI-00017547","kind":"vulnerability","title":"OliveTin: ValidateArgumentType API Endpoint's Missing Authentication Allows Action and Argument Enumeration","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-f637-w7p2-m7fx","CVE-2026-48709"],"plain_summary":"GitHub lists this reviewed advisory for github.com/OliveTin/OliveTin. 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-1aa502358814bbc3669615e91d1c0d17"],"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":"2026-06-24T17:41:02.000Z","value":"3.7 low","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-1aa502358814bbc3669615e91d1c0d17"}],"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-1aa502358814bbc3669615e91d1c0d17","url":"https://github.com/advisories/GHSA-f637-w7p2-m7fx","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-f637-w7p2-m7fx","publisher":"GitHub Advisory Database","observed_at":"2026-11-05T19:06:16.668Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-1aa502358814bbc3669615e91d1c0d17"],"technology":"github.com/OliveTin/OliveTin","known_exclusions":[],"conditions_summary":"## Summary\n\nThe `ValidateArgumentType` RPC endpoint in `service/internal/api/api.go` does not perform any authentication or authorization checks. Unlike all other data-returning API endpoints, it does not call `auth.UserFromApiCall` or `checkDashboardAccess`. When `AuthRequireGuestsToLogin` is enabled (the security-conscious configuration), this endpoint remains accessible to unauthenticated users and can be used as an oracle to enumerate valid action binding IDs and their argument configurations.\n\n## Details\n\n### Root Cause\n\nThe `ValidateArgumentType` handler at `service/internal/api/api.go:726` has no authentication check:\n\n```go\nfunc (api *oliveTinAPI) ValidateArgumentType(ctx ctx.Context, req *connect.Request[apiv1.ValidateArgumentTypeRequest]) (*connect.Response[apiv1.ValidateArgumentTypeResponse], error) {\n    if api.argumentNotFoundForValidation(req.Msg) {\n        return nil, connect.NewError(connect.CodeNotFound, fmt.Errorf(\"action or argument not found for binding ID %s\", req.Msg.BindingId))\n    }\n\n    err := api.validateArgumentTypeInternal(req.Msg)\n    desc := \"\"\n    if err != nil {\n        desc = err.Error()\n    }\n\n    return connect.NewResponse(&apiv1.ValidateArgumentT","public_affected_ranges":["< 0.0.0-20260521230847-a3865704c854"]}],"null_published_at":"2026-11-05T19:10:21.410Z","source_updated_at":"2026-06-24T17:41:02.000Z","source_disclosed_at":"2026-06-24T17:41:01.000Z","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":"2026-11-05T19:06:16.668Z"}],"next_cursor":null,"snapshot_revision":"42594"}