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CVE-2026-42328— go-ipld-prime: DAG-CBOR and DAG-JSON decoders unbounded recursion depth

Quick assessment

Affected
ipld go-ipld-prime
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

go-ipld-prime是IPLD开源的一种 ipld 规范接口的实现。 go-ipld-prime 0.23.0之前版本存在安全漏洞，该漏洞源于DAG-CBOR和DAG-JSON解码器在嵌套映射或列表时无深度限制，可能导致深度嵌套有效载荷造成栈溢出。

CVSS 6.2 · Medium EPSS 0.12% · P2

Possible ATT&CK Techniques 1 AI

T1496 · Resource Hijacking

Affected Version Matrix 1

VendorProduct Version RangeStatus
ipld go-ipld-prime < 0.23.0 affected
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I. Basic Information for CVE-2026-42328

Vulnerability Information
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Vulnerability Title
go-ipld-prime: DAG-CBOR and DAG-JSON decoders unbounded recursion depth
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
未经控制的递归
Source: CVE Program / CVE List V5
Vulnerability Title
go-ipld-prime 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
go-ipld-prime是IPLD开源的一种 ipld 规范接口的实现。 go-ipld-prime 0.23.0之前版本存在安全漏洞，该漏洞源于DAG-CBOR和DAG-JSON解码器在嵌套映射或列表时无深度限制，可能导致深度嵌套有效载荷造成栈溢出。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
ipld go-ipld-prime < 0.23.0 -

II. Public POCs for CVE-2026-42328

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III. Intelligence Information for CVE-2026-42328

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Vendor Advisories for CVE-2026-42328 (1)

IV. Related Vulnerabilities

Same product: go-ipld-prime
Same vendor: ipld
Same weakness: CWE-674