{"items":[{"id":"NVI-00018253","kind":"vulnerability","title":"free5GC's NEF 3gpp-pfd-management PATCH applications/{appId} panics on UDR access failure due to nil ProblemDetails dereference","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-j59f-x285-69jx","CVE-2026-44322"],"plain_summary":"GitHub lists this reviewed advisory for github.com/free5gc/nef. 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-00de09c06c03c4910e31778f16103dab"],"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":"2026-06-08T23:47:24.000Z","value":"7.5 high","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-00de09c06c03c4910e31778f16103dab"}],"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-00de09c06c03c4910e31778f16103dab","url":"https://github.com/advisories/GHSA-j59f-x285-69jx","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-j59f-x285-69jx","publisher":"GitHub Advisory Database","observed_at":"2026-11-07T00:50:36.189Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-00de09c06c03c4910e31778f16103dab"],"technology":"github.com/free5gc/nef","known_exclusions":[],"conditions_summary":"### Summary\nfree5GC's NEF `PATCH /3gpp-pfd-management/v1/{afId}/transactions/{transId}/applications/{appId}` handler panics with a nil-pointer dereference when the upstream UDR call fails AND the consumer wrapper returns `err != nil` together with a nil `*ProblemDetails`. The handler's `errPfdData != nil` branch builds its own `problemDetailsErr` correctly, but immediately after it reads `problemDetails.Cause` (the OTHER value, which is nil in this branch) and panics. Gin recovery converts the panic into `HTTP 500`, so a single PATCH against this endpoint returns 500 instead of the intended controlled error response whenever UDR access is failing.\n\nThis is a second-order bug: the trigger requires UDR access to be failing (e.g. NRF or UDR is unreachable, registration broken, transient network failure). The attacker does not directly control that condition, so this is scored as AC:H. Once the upstream condition exists, the trigger is a single PATCH request and is repeatable.\n\nThe HTTP request itself in v4.2.1 is reachable without an `Authorization` header because the underlying NEF `3gpp-pfd-management` route group is mounted without inbound auth middleware (see free5gc/free5gc#858).","public_affected_ranges":["< 1.2.3"]}],"null_published_at":"2026-11-07T07:07:39.794Z","source_updated_at":"2026-06-08T23:47:24.000Z","source_disclosed_at":"2026-05-08T22:50:57.000Z","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":"2026-11-07T00:50:36.189Z"}],"next_cursor":null,"snapshot_revision":"42594"}