6.2

CVE-2026-42328: ipld go-ipld-prime Uncontrolled Recursion

CVSS: 6.2v3.1MediumDeferred
AliasesCGA-3369-9w3x-7jgjCGA-4778-6pjc-xg57CGA-5q85-86xv-c6v5
Published 27-05-2026Last modified 28-05-2026
Open JSON

Vulnerability summary

CVE-2026-42328 is a medium (CVSS 6.2) Uncontrolled Recursion vulnerability in ipld go-ipld-prime. EPSS estimates a 0.16% chance of exploitation in the next 30 days, higher than 4.3% of scored vulnerabilities.

Overall risk
25/100
0100
Medium · default modelHow is this calculated?
CVSS score
6.2/10
010
Medium · v3.1 (CVE.org)
EPSS score
0.16%
0%100%
Low · +0.04 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 3 · Related 4
OPENSUSE-SU-2026:21551-1SUSE-SU-2026:23216-1SUSE-SU-2026:23227-1CGA-MFQR-H7VV-52GQ

Timeline

  1. 27-05-2026
    PublishedVulnerability first disclosed.
  2. 28-05-2026
    Last modifiedVulnerability information updated.

Description

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.

CVSS metrics

5 scores · 5 sources · 1 version

EPSS trend

Probability

0.16%

Chance of exploitation in the next 30 days

Percentile

4%

Versus all other CVEs

30-day change

+0.04 pp

From 0.12% on 20-09-2026

20-09-202620-10-2026
EPSS score
0.16%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Chainguard25 products
  • ipfs-cluster< 1.1.5-r14
  • ipfs-cluster-fips< 1.1.5-r12
  • k3s-1.31< 1.31.6.1-r23
  • k3s-1.32< 1.32.13.1-r15
  • k3s-1.33< 1.33.10.1-r10
Wolfi11 products
  • ipfs-cluster< 1.1.5-r14
  • k3s-1.32< 1.32.13.1-r15
  • k3s-1.33< 1.33.10.1-r10
  • k3s-1.34< 1.34.6.1-r16
  • k3s-1.35< 1.35.3.1-r7
Github.com/ipld1 product
  • go-ipld-prime< 0.23.0
Ipld1 product

4 vendors · 38 products

References

5 links