CVE-2026-34062
MEDIUMNimiq has Allocation of Resources Without Limits or Throttling in its libp2p request/response
Title source: cnaDescription
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