CVE-2026-46679
libp2p: Memory DoS via subscription flood of unique topics
CVSS Score
7.5
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-20 CWE-400 CWE-401 |
| Vendor | libp2p |
| Product | js-libp2p |
| Published | Jun 10, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Affected Versions
libp2p / js-libp2p
< 15.0.23