High 7.5Published Aug 26, 2026

CVE-2026-46369Nimiq: Validity store off by one error

Updated under an hour ago (2026-10-19 08:30 UTC)

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Every CVE for nimiq core-rs-albatross

Exploited in the last 30 days

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: 7.5 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Weakness (CWE): CWE-193, CWE-294
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: GitHub_M
NVD analysis: Deferred
Record last updated: Aug 27, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

nimiq core-rs-albatross nimiq:core_rs_albatross (from the name)	before 1.5.1	CNA record

References

https://github.com/nimiq/core-rs-albatross/security/advisories/GHSA-3763-qp59-59vfx-refsource-confirm
https://github.com/nimiq/core-rs-albatross/pull/3772x-refsource-misc
https://github.com/nimiq/core-rs-albatross/commit/a530b2434ebca6e3716f07c73079786fcc6f2e41x-refsource-misc

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.