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CVE PROGRAM SOURCE RECORD7.5 High

CVE-2026-35405

libp2p-rendezvous: Unlimited namespace registrations per peer enables OOM DoS on rendezvous servers

Description

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.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

libp2p rust-libp2p

  • < 0.17.1affected

References