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Vulnerability record · CVE-2026-46679 · published 10 June 2026

CVE-2026-46679: Improper input validation vulnerability

libp2p is a JavaScript Implementation of libp2p networking stack. Prior to version 15.0.23, three cooperating omissions in @libp2p/gossipsub allow an unauthenticated single peer to exhaust the Node.js heap of any gossipsub node with default options. This issue has been patched in version 15.0.23.

7.5 CVSS 3.1 High EPSS 0.46% · top 62.6% CWE-20 · Improper input validationCWE-400 · Uncontrolled resource consumption Deferred
7.5CVSS 3.1 base score
0.46%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
2References
23 Jul 2026Last modified by NVD

Description

libp2p is a JavaScript Implementation of libp2p networking stack. Prior to version 15.0.23, three cooperating omissions in @libp2p/gossipsub allow an unauthenticated single peer to exhaust the Node.js heap of any gossipsub node with default options. This issue has been patched in version 15.0.23.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References

LinkTags
https://github.com/libp2p/js-libp2p/security/advisories/GHSA-4f8r-922h-2vgv
https://github.com/libp2p/js-libp2p/security/advisories/GHSA-4f8r-922h-2vgv

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Source: NIST National Vulnerability Database (record CVE-2026-46679), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.