CVE-2026-46369

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 v3 7.5 HIGH

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact HIGH

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://github.com/nimiq/core-rs-albatross/commit/a530b2434ebca6e3716f07c73079786fcc6f2e41
https://github.com/nimiq/core-rs-albatross/pull/3772
https://github.com/nimiq/core-rs-albatross/security/advisories/GHSA-3763-qp59-59vf

Configurations

No configuration.

History

No history.

Information

Published : 2026-08-26 20:17

Updated : 2026-09-09 21:09

NVD link : CVE-2026-46369

Mitre link : CVE-2026-46369

CVE.ORG link : CVE-2026-46369

JSON object : View

Products Affected

No product.

CWE

CWE-193

Off-by-one Error

CWE-294

Authentication Bypass by Capture-replay

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