Medium 5.3Published Apr 22, 2026

CVE-2026-34062nimiq-libp2p is a Nimiq network implementation based on libp2p.

Updated under an hour ago (2026-10-19 07:23 UTC)

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Exploited in the last 30 days

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.

CVSS: 5.3 MEDIUM (v3.1, NVD)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Weakness (CWE): CWE-770
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Not given
NVD analysis: Analyzed
Record last updated: Jun 17, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

nimiq nimiq_proof-of-stake nimiq:nimiq_proof-of-stake	before 1.3.0	NVD

References

https://github.com/nimiq/core-rs-albatross/commit/c021a5337b808c73571b44999f9753051bac7508patch
https://github.com/nimiq/core-rs-albatross/releases/tag/v1.3.0release-notes
https://github.com/nimiq/core-rs-albatross/security/advisories/GHSA-gh7r-qh4p-q4frpatch, vendor-advisory

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.