Protocol Libp2p vulnerabilities
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Published CVEs affecting Protocol Libp2p: 2 record(s), with affected versions and fixes.cpe:2.3:a:protocol:libp2p
CVE-2026-35457
High · 8.2
CWE-770 Apr 7, 2026
libp2p-rust has unbounded rendezvous DISCOVER cookies enable remote memory exhaustion
libp2p-rust is the official rust language Implementation of the libp2p networking stack. Prior to 0.17.1, the rendezvous server stores pagination cookies without bounds. An unauthenticated peer can repeatedly issue DISCOVER requests and force unbounded memory growth. This vulnerability is fixed in 0.17.1.
CVE-2026-35405
High · 7.5
CWE-770 Apr 7, 2026
libp2p-rendezvous: Unlimited namespace registrations per peer enables OOM DoS on rendezvous servers
libp2p-rust is the official rust language Implementation of the libp2p networking stack. Prior to 0.17.1, libp2p-rendezvous server has no limit on how many namespaces a single peer can register. A malicious peer can just keep registering unique namespaces in a loop and the server happily accepts every single one allocating memory for each registration with no pushback. Keep doing this long enough (or with multiple sybil peers) and the server process gets OOM killed. This vulnerability is fixed in 0.17.1.