CVE-2026-42328CWE-674

go-ipld-prime: DAG-CBOR and DAG-JSON decoders unbounded recursion depth

Medium · published May 27, 2026

CVSS v3.1
6.2
EPSS
0%
Percentile
4.4
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
6.2 · MEDIUM
Vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS v4.0
Not supplied
EPSS
0.00156 · 4.4th percentile
Weakness
CWE-674 · Uncontrolled Recursion
Published
2026-05-27T16:31Z
EPSS history
Timeline
  • 27 MAY 16:31Z
    go-ipld-prime: DAG-CBOR and DAG-JSON decoders unbounded recursion depth
    cvelistv5