What is CVE-2026-34062?

CVE-2026-34062 is a medium-severity vulnerability in Nimiq Network-libp2p, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 5.3/10. Published 2026-04-22.

How severe is CVE-2026-34062?

Medium severity. CVSS v3 base score is 5.3 out of 10.

Resource exhaustion in Nimiq Network-libp2p

CVE-2026-34062

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 th…

EPSS: 0.001 (17.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L.

Affected products

Nimiq Network-libp2p — versions < 1.3.0

Weakness classification (CWE)

CWE-770 — Allocation of Resources Without Limits or Throttling

References

https://github.com/nimiq/core-rs-albatross/security/advisories/GHSA-gh7r-qh4p-q4fr (x_refsource_CONFIRM)
https://github.com/nimiq/core-rs-albatross/commit/c021a5337b808c73571b44999f9753051bac7508 (x_refsource_MISC)
https://github.com/nimiq/core-rs-albatross/releases/tag/v1.3.0 (x_refsource_MISC)

Frequently asked questions

What is CVE-2026-34062?: CVE-2026-34062 is a medium-severity vulnerability in Nimiq Network-libp2p, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 5.3/10. Published 2026-04-22.
How severe is CVE-2026-34062?: Medium severity. CVSS v3 base score is 5.3 out of 10.