How severe is CVE-2026-35480?

CVE-2026-35480 has a CVSS 3.x base score of 6.2, rated medium severity. It is exploitable over local access with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2026-35480 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (5th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-35480?

CVE-2026-35480 affects Protocol Go-ipld-prime. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-35480?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2026-35480 have an EU (EUVD) identifier?

Yes. CVE-2026-35480 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-19663.

When was CVE-2026-35480 published?

CVE-2026-35480 was published on 2026-04-07 and last updated on 2026-06-17.

CVE-2026-35480

CVE-2026-35480 is a medium-severity vulnerability in Protocol Go-ipld-prime with a CVSS 3.x base score of 6.2. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-770.

Key facts

Severity: Medium (CVSS 3.x base score 6.2)
EPSS exploit prediction: 0% (5th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-19663
Weakness: CWE-770
Affected product: Protocol Go-ipld-prime
Published: 2026-04-07
Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2026-35480?: 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.
How severe is CVE-2026-35480?: CVE-2026-35480 has a CVSS 3.x base score of 6.2, rated medium severity. It is exploitable over local access with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2026-35480 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (5th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-35480?: CVE-2026-35480 affects Protocol Go-ipld-prime. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-35480?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-35480 have an EU (EUVD) identifier?: Yes. CVE-2026-35480 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-19663.
When was CVE-2026-35480 published?: CVE-2026-35480 was published on 2026-04-07 and last updated on 2026-06-17.

References

https://github.com/ipld/go-ipld-prime/security/advisories/GHSA-378j-3jfj-8r9f

Affected products (1)

cpe:2.3:a:protocol:go-ipld-prime:*:*:*:*:*:go:*:*

More vulnerabilities in Protocol Go-ipld-prime

CVE-2023-22460 — High (CVSS 7.5): go-ipld-prime is an implementation of the InterPlanetary Linked Data (IPLD) spec interfaces, a batteries-included codec…

All CVEs affecting Protocol Go-ipld-prime →

Other CWE-770 (Allocation of Resources Without Limits or Throttling) vulnerabilities

CVE-2026-31283 — Critical (CVSS 9.8): In Totara LMS v19.1.5 and before, the forgot password API does not implement rate limiting for the target email…
CVE-2020-37067 — Critical (CVSS 9.8): Filetto 1.0 FTP server contains a denial of service vulnerability in the FEAT command processing that allows attackers…
CVE-2021-47875 — Critical (CVSS 9.8): GeoGebra CAS Calculator 6.0.631.0 contains a denial of service vulnerability that allows attackers to crash the…
CVE-2025-11832 — Critical (CVSS 9.8): Allocation of Resources Without Limits or Throttling vulnerability in Azure Access Technology BLU-IC2, Azure Access…
CVE-2024-44241 — Critical (CVSS 9.8): The issue was addressed with improved bounds checks. This issue is fixed in iOS 18.1 and iPadOS 18.1, macOS Sequoia…
CVE-2022-3439 — Critical (CVSS 9.8): Allocation of Resources Without Limits or Throttling in GitHub repository ikus060/rdiffweb prior to 2.5.0.

Browse all CWE-770 (Allocation of Resources Without Limits or Throttling) vulnerabilities →