CVE-2026-35480: go-ipld-prime is an implementation of the InterPlanetary Linked Data (IPLD) spec interfaces, a batteries-inclu

Q: How do I fix CVE-2026-35480?

go-ipld-prime: upgrade to 0.22.0. Exact commands for each OS are on this page.

Q: Is CVE-2026-35480 being exploited?

CVE-2026-35480 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2026-35480 affect?

CVE-2026-35480 affects go-ipld-prime. Severity is medium (CVSS 6.2). 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-CB

Q: How urgent is CVE-2026-35480?

Priority 23/100. No elevated risk signals yet.

Routine

MEDIUM 6.2UPGRADE

CVE-2026-35480 is a medium-severity flaw (CVSS 6.2) affecting go-ipld-prime. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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 sma

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	6.2 (Medium)
Attack vector	Local
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.2% (top 95%)
CISA exploited list	No
Weakness	CWE-770
Published	2026-04-07
Last modified	2026-10-26

Publisher (CNA): GitHub, Inc. · Vendor: protocol

Last updated 2026-10-26 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-04-07 15:17 UTCPublished CVE record published
2026-10-26 22:10 UTCUpdated Record last modified

protocol go-ipld-prime UPGRADE

Affected: < 0.22.0

Fixed in: 0.22.0

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy go-ipld-prime || rpm -q go-ipld-prime || go-ipld-prime --version

2. UPGRADE to 0.22.0 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade go-ipld-prime

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade go-ipld-prime

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-35480?

go-ipld-prime: upgrade to 0.22.0. Exact commands for each OS are on this page.

Is CVE-2026-35480 being exploited?

CVE-2026-35480 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-35480 affect?

CVE-2026-35480 affects go-ipld-prime. Severity is medium (CVSS 6.2). 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-CB

How urgent is CVE-2026-35480?

Priority 23/100. No elevated risk signals yet.

References

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