Vulnerability in Nimiq Core-Rs-Albatross

CVE-2026-46545

Nimiq is a Rust implementation of the Nimiq Proof-of-Stake protocol based on the Albatross consensus algorithm. Prior to version 1.5.0, a remote, unauthenticated denial-of-service vulnerability in MerkleRadixTrie::put_chunk allows any state-sync peer to crash any node performing state synchronization (freshly joining nodes and recovering nodes). This issue has been patched in version 1.5.0.

Published · last modified .

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.003 (27.3th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 27th percentile — 27.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2026-46545: held from 0.006 to 0.003.

EPSS over last 30 days · oldest: 0.006 · newest: 0.003 · change: -0.003

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-46545?
CVE-2026-46545 is a high-severity vulnerability in Nimiq Core-Rs-Albatross, classified under CWE-248. CVSS score: 7.5/10. Published 2026-06-10.
How severe is CVE-2026-46545?
High severity. CVSS v3 base score is 7.5 out of 10.