CVE-2026-35457: high-severity vulnerability in libp2p rust-libp2p
libp2p-rust has unbounded rendezvous DISCOVER cookies enable remote memory exhaustion
Published
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 8.2epss 0.3%
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.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H
Affected products
libp2p · rust-libp2pRelated CVEs — libp2p rust-libp2p
In the same product, most dangerous first.
CVE-2022-23486HIGHlibp2p-rust denial of service vulnerability from lack of resource managementEPSS 0.7%CVE-2026-33040HIGHlibp2p-rust: Gossipsub PRUNE.backoff Duration OverflowEPSS 0.6%CVE-2026-34219HIGHlibp2p-gossipsub: Gossipsub PRUNE Backoff Heartbeat Instant OverflowEPSS 0.6%CVE-2026-35405HIGHlibp2p-rendezvous: Unlimited namespace registrations per peer enables OOM DoS on rendezvous serversEPSS 0.4%CVE-2026-95859HIGHlibp2p-rust: Gossipsub GRAFT topics unbounded growthEPSS 0.3%CVE-2026-61544HIGHlibp2p-quic: Remote panic via certificate expiry race during QUIC handshakeEPSS 0.3%