Vulnerability Description
Nimiq is a Rust implementation of the Nimiq Proof-of-Stake protocol based on the Albatross consensus algorithm. Through 1.5.0, the validity store uses a strict lower-bound comparison that expires a stored transaction too early relative to Transaction::is_valid_at, allowing a remote attacker to replay the same signed transaction during a blocks_per_batch minus one block window and cause the sender and recipient balances to be updated twice. This issue is fixed in version 1.5.1.
CVSS Score
HIGH
Related Weaknesses (CWE)
References
- https://github.com/nimiq/core-rs-albatross/commit/a530b2434ebca6e3716f07c7307978
- https://github.com/nimiq/core-rs-albatross/pull/3772
- https://github.com/nimiq/core-rs-albatross/security/advisories/GHSA-3763-qp59-59
FAQ
What is CVE-2026-46369?
CVE-2026-46369 is a vulnerability with a CVSS score of 7.5 (HIGH). Nimiq is a Rust implementation of the Nimiq Proof-of-Stake protocol based on the Albatross consensus algorithm. Through 1.5.0, the validity store uses a strict lower-bound comparison that expires a st...
How severe is CVE-2026-46369?
CVE-2026-46369 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-46369?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.