CVE-2026-34062

MEDIUM

Nimiq has Allocation of Resources Without Limits or Throttling in its libp2p request/response

Title source: cna

Description

nimiq-libp2p is a Nimiq network implementation based on libp2p. Prior to version 1.3.0, `MessageCodec::read_request` and `read_response` call `read_to_end()` on inbound substreams, so a remote peer can send only a partial frame and keep the substream open. because `Behaviour::new` also sets `with_max_concurrent_streams(1000)`, the node exposes a much larger stalled-slot budget than the library default. The patch for this vulnerability is formally released as part of v1.3.0. No known workarounds are available.

Scores

CVSS v3 5.3
EPSS 0.0004
EPSS Percentile 10.9%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Details

CWE
CWE-770
Status published
Products (1)
nimiq/network-libp2p < 1.3.0
Published Apr 22, 2026
Tracked Since Apr 23, 2026