6.2

CVE-2026-35480: ipld go-ipld-prime

CVSS: 6.2v3.1MediumAnalyzed
AliasesCGA-24vm-99hx-374mCGA-2f8c-cfh7-qvh9CGA-38w3-wwhp-xr77
Published 07-04-2026Last modified 09-04-2026
Open JSON

Vulnerability summary

CVE-2026-35480 is a medium (CVSS 6.2) vulnerability in ipld go-ipld-prime. EPSS estimates a 0.16% chance of exploitation in the next 30 days, higher than 4.4% 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 · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 2 · Related 3
OPENSUSE-SU-2026:10543-1OPENSUSE-SU-2026:21483-1CGA-GG2G-5Q7F-85CJ

Timeline

  1. 07-04-2026
    PublishedVulnerability first disclosed.
  2. 09-04-2026
    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 0.22.0, the DAG-CBOR decoder uses collection sizes declared in CBOR headers as Go preallocation hints for maps and lists. The decoder does not cap these size hints or account for their cost in its allocation budget, allowing small payloads to cause excessive memory allocation. This vulnerability is fixed in 0.22.0.

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

0.00 pp

From 0.16% 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

Chainguard26 products
  • ipfs-cluster< 1.1.5-r11
  • ipfs-cluster-fips< 1.1.5-r8
  • k3s< 1.35.3.1-r5
  • k3s-1.31< 1.31.6.1-r22
  • k3s-1.32< 1.32.13.1-r10
Wolfi12 products
  • ipfs-cluster< 1.1.5-r11
  • k3s< 1.35.3.1-r5
  • k3s-1.32< 1.32.13.1-r10
  • k3s-1.33< 1.33.10.1-r3
  • k3s-1.34< 1.34.6.1-r5
Github.com/ipld1 product
  • go-ipld-prime< 0.22.0
Ipld1 product
Protocol1 product

5 vendors · 41 products

References

6 links