CVE-2026-42328 json
go-ipld-prime: DAG-CBOR and DAG-JSON decoders unbounded recursion depth
published 2026-05-07 6 mo ago modified 2026-10-26 14 d ago also EUVD-2026-32581 , GHSA-w239-58x2-q8p5 , GO-2026-5684
- cvss
- 6.2
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.1%
- EPSS 0.1% chance of exploitation in 30 days, percentile 1%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- go github.com/ipld/go-ipld-prime 0.23.0
- protocol go-ipld-prime 0.23.0
- govulncheck-vulndb SLES 16.0, SLES for SAP applications 16.0 0.0.20260727T201416-160000.1.1
suse advisories SUSE-SU-2026:23216-1SUSE-SU-2026:23227-1
- govulncheck-vulndb openSUSE Leap 16.0 0.0.20260727T201416-160000.1.1
opensuse advisories openSUSE-SU-2026:21551-1
- github.com/ipld/go-ipld-prime#625 pull request
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 5 mo ago
Exploit prediction
0.12% chance of exploitation in the next 30 days, higher than 1% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 6.2 | CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
| GitHub | 3.1 | 6.2 | CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| go | github.com/ipld/go-ipld-prime | <0.23.0 |
0.23.0 |
Affected products
- ipld go-ipld-prime
Classification
- Weakness
-
- CWE-674 Uncontrolled Recursion
References
Sources
- CVE List CVE-2026-42328
- GitHub Advisory GHSA-w239-58x2-q8p5
- NVD CVE-2026-42328
- OSV GO-2026-5684
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.
CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.