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OpenAdvisories
High · 7.5 CVE-2026-46679 EUVD-2026-36152GHSA-4f8r-922h-2vgv

libp2p: Memory DoS via subscription flood of unique topics

Published Jun 10, 2026 · Updated Jun 11, 2026 · Assigned by GitHub_M

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.

Affected products

VendorProductAffectedFixed
libp2p js-libp2p < 15.0.23 —

Affected packages

EcosystemPackageAffectedFixedRecord
npm @libp2p/gossipsub < 15.0.23 15.0.23 GHSA-4f8r-922h-2vgv

References