Vulnerability in Nimiq Nimiq-transaction

CVE-2026-34068

nimiq-transaction provides the transaction primitive to be used in Nimiq's Rust implementation. Prior to version 1.3.0, the staking contract accepts `UpdateValidator` transactions that set `new_voting_key=Some(...)` while omitting `new_pro…

EPSS: 0.000 (0.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.8 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:H/A:N.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-34068?
CVE-2026-34068 is a medium-severity vulnerability in Nimiq Nimiq-transaction, classified under Improper Verification of Cryptographic Signature. CVSS score: 6.8/10. Published 2026-04-22.
How severe is CVE-2026-34068?
Medium severity. CVSS v3 base score is 6.8 out of 10.