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VulnerabilityPublished Updated

CVE-2026-35480: go-ipld-prime · Unthrottled Resource Allocation

Affects go-ipld-primeSource CVE Database V5

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Not known to be exploited · CVSS 6.2 Medium : upgrade to 0.22.0 when convenient.

Data as of 30 Oct 2026, 11:52 UTC

CVSS 3.1 base score
6.2Medium
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.1% chance of exploitation in 30 days – higher than 4% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in 0.22.0
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 7 Apr 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 30 Oct 2026.

What to do

Upgrade go-ipld-prime and github.com/ipld/go-ipld-prime to 0.22.0.

Affected software

ProductAffectedFixed in
ipldgo-ipld-primeAffected
  • <0.22.0
Fixed in
  • 0.22.0
Gogithub.com/ipld/go-ipld-primepkg:golang/github.com/ipld/go-ipld-primeOther threatsAffected
  • <0.22.0
Fixed in
  • 0.22.0

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

Upgrade to go-ipld-prime version 0.22.0 or later, where this vulnerability is fixed. No other mitigations are documented. Patch status is confirmed fixed in version 0.22.0.

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.

References

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