GHSA-4F8R-922H-2VGV js-libp2p: Memory DoS via subscription flood of unique topics

Summary Three cooperating omissions in @libp2p/gossipsub allow an unauthenticated single peer to exhaust the Node.js heap of any gossipsub node with default options. 1. defaultDecodeRpcLimits.maxSubscriptions = Infinity packages/gossipsub/src/message/decodeRpc.ts:11: no decode-level cap on...

Missing Release of Memory after Effective Lifetime

Overview @libp2p/gossipsub is an A typescript implementation of gossipsub Affected versions of this package are vulnerable to Missing Release of Memory after Effective Lifetime through unbounded growth of the topics data structure when processing subscription requests. An attacker can exhaust...

CVE-2026-40094 nimiq-blockchain: network-libp2p untrusted peer can crash address book via empty peer contact addresses

nimiq-blockchain provides persistent block storage for Nimiq's Rust implementation. In versions 1.3.0 and prior, network-libp2p discovery accepts signed PeerContact updates from untrusted peers and stores them in a peer contact book, eventually leading to address book crash. A PeerContact can...

CVE-2026-40094

The CVE affects nimiq-blockchain (Rust). In versions up to 1.3.0, network-libp2p discovery accepts signed PeerContact updates from untrusted peers and stores them in a peer contact book; a PeerContact can have an empty addresses list. PeerContactBook::known_peers then builds the address book usin...

CVE-2026-40094 nimiq-blockchain: network-libp2p untrusted peer can crash address book via empty peer contact addresses

nimiq-blockchain provides persistent block storage for Nimiq's Rust implementation. In versions 1.3.0 and prior, network-libp2p discovery accepts signed PeerContact updates from untrusted peers and stores them in a peer contact book, eventually leading to address book crash. A PeerContact can...

CVE-2026-46679

creationtimestamp| type| source ---|---|--- 2026-05-16 03:00:35+00:00| published-proof-of-concept| https://github.com/libp2p/js-libp2p/security/advisories/GHSA-4f8r-922h-2vgv...

CVE-2026-45783

creationtimestamp| type| source ---|---|--- 2026-05-13 02:15:12+00:00| published-proof-of-concept| https://github.com/libp2p/js-libp2p/security/advisories/GHSA-32mq-hpph-xfvr...

CVE-2026-34063

Nimiq's network-libp2p is a Nimiq network implementation based on libp2p. Prior to version 1.3.0, network-libp2p discovery uses a libp2p ConnectionHandler state machine. the handler assumes there is at most one inbound and one outbound discovery substream per connection. if a remote peer...

EUVD-2026-25058

Nimiq's network-libp2p is a Nimiq network implementation based on libp2p. Prior to version 1.3.0, network-libp2p discovery uses a libp2p ConnectionHandler state machine. the handler assumes there is at most one inbound and one outbound discovery substream per connection. if a remote peer...

CVE-2026-34063 network-libp2p: Peer can crash the node by opening discovery protocol substream twice

Nimiq's network-libp2p is a Nimiq network implementation based on libp2p. Prior to version 1.3.0, network-libp2p discovery uses a libp2p ConnectionHandler state machine. the handler assumes there is at most one inbound and one outbound discovery substream per connection. if a remote peer...

CVE-2026-34063 network-libp2p: Peer can crash the node by opening discovery protocol substream twice

Nimiq's network-libp2p is a Nimiq network implementation based on libp2p. Prior to version 1.3.0, network-libp2p discovery uses a libp2p ConnectionHandler state machine. the handler assumes there is at most one inbound and one outbound discovery substream per connection. if a remote peer...

CVE-2026-34062 Nimiq has Allocation of Resources Without Limits or Throttling in its libp2p request/response

nimiq-libp2p is a Nimiq network implementation based on libp2p. Prior to version 1.3.0, MessageCodec::readrequest and readresponse call readtoend on inbound substreams, so a remote peer can send only a partial frame and keep the substream open. because Behaviour::new also sets...

CVE-2026-34062 Nimiq has Allocation of Resources Without Limits or Throttling in its libp2p request/response

nimiq-libp2p is a Nimiq network implementation based on libp2p. Prior to version 1.3.0, MessageCodec::readrequest and readresponse call readtoend on inbound substreams, so a remote peer can send only a partial frame and keep the substream open. because Behaviour::new also sets...

EUVD-2026-25056

nimiq-libp2p is a Nimiq network implementation based on libp2p. Prior to version 1.3.0, MessageCodec::readrequest and readresponse call readtoend on inbound substreams, so a remote peer can send only a partial frame and keep the substream open. because Behaviour::new also sets...

CVE-2026-34062

CVE-2026-34062 affects the Nimiq libp2p integration. Before version 1.3.0, MessageCodec::read_request and read_response call read_to_end() on inbound substreams, allowing a remote peer to send only a partial frame and keep the substream open. Additionally, Behaviour::new sets with_max_concurrent_...

CVE-2026-35405

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...

CVE-2026-35405

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...

CVE-2026-35457

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 i...

CVE-2026-35457 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 i...

CVE-2026-35457

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 i...