CVE-2026-42328: Ipld Go-Ipld-Prime

Medium severity, CVSS 6.2. EPSS: 0.2% chance of exploitation in the next 30 days.

go-ipld-prime is an implementation of the InterPlanetary Linked Data (IPLD) spec interfaces, a batteries-included codec implementations of IPLD for CBOR and JSON, and tooling for basic operations on IPLD objects. Prior to 0.23.0, 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). This vulnerability is fixed in 0.23.0.

Affected products

• Ipld Go-Ipld-Prime: before 0.23.0 (fixed in 0.23.0)

Published 2026-05-27. Last modified 2026-06-17.