{"items":[{"id":"NVI-00018563","kind":"vulnerability","title":"go-ipld-prime's DAG-CBOR and DAG-JSON decoders have unbounded recursion depth","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-w239-58x2-q8p5","CVE-2026-42328"],"plain_summary":"GitHub lists this reviewed advisory for github.com/ipld/go-ipld-prime. 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-3c12a323202494f1455e1400a4650869"],"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":"2026-06-08T23:47:37.000Z","value":"6.2 medium","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-3c12a323202494f1455e1400a4650869"}],"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-3c12a323202494f1455e1400a4650869","url":"https://github.com/advisories/GHSA-w239-58x2-q8p5","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-w239-58x2-q8p5","publisher":"GitHub Advisory Database","observed_at":"2026-11-07T00:50:36.189Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-3c12a323202494f1455e1400a4650869"],"technology":"github.com/ipld/go-ipld-prime","known_exclusions":[],"conditions_summary":"The DAG-CBOR and DAG-JSON decoders recurse on each nested map or list without a depth limit. A payload containing deeply nested collections causes the decoder to recurse once per level, growing the goroutine stack until the Go runtime terminates the process with a fatal stack overflow (distinct from a recoverable panic).\n\nFor DAG-CBOR, a payload of approximately 2 MB, consisting of repeated `0x81` (array-of-1) bytes followed by a terminator, produces around 2 million recursion frames and reliably exhausts Go's default 1 GB goroutine stack. The existing allocation budget does not prevent this: each nested collection header costs only a handful of budget units, so the stack is exhausted before the budget is. DAG-JSON has equivalent exposure via `[[[...]]]`-style payloads; it has no budget system and is therefore unprotected against recursion depth as well.\n\nSchema-free decoding (using `basicnode.Prototype.Any`) allows arbitrary nesting depth. Schema-bound decoding bounds nesting only when the schema itself is non-recursive and contains no fields typed as `Any`; schemas with recursive type references or any `Any`-typed fields permit unconstrained nesting at those points.\n\nThe fix adds","public_affected_ranges":["< 0.23.0"]}],"null_published_at":"2026-11-07T07:07:39.855Z","source_updated_at":"2026-06-08T23:47:37.000Z","source_disclosed_at":"2026-05-07T02:07:21.000Z","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"}