What is CVE-2026-34064?

CVE-2026-34064 is a medium-severity vulnerability in Nimiq Nimiq-account, classified under Integer Underflow. CVSS score: 5.3/10. Published 2026-04-22.

How severe is CVE-2026-34064?

Medium severity. CVSS v3 base score is 5.3 out of 10.

Integer overflow in Nimiq Nimiq-account

CVE-2026-34064

nimiq-account contains account primitives to be used in Nimiq's Rust implementation. Prior to version 1.3.0, `VestingContract::can_change_balance` returns `AccountError::InsufficientFunds` when `new_balance < min_cap`, but it constructs th…

EPSS: 0.000 (11.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N.

Affected products

Nimiq Nimiq-account — versions < 1.3.0

Weakness classification (CWE)

CWE-191 — Integer Underflow

References

https://github.com/nimiq/core-rs-albatross/security/advisories/GHSA-vc34-39q2-m6q3 (x_refsource_CONFIRM)
https://github.com/nimiq/core-rs-albatross/pull/3658 (x_refsource_MISC)
https://github.com/nimiq/core-rs-albatross/commit/4d01946f0b3d6c6e31786f91cdfb3eb902908da0 (x_refsource_MISC)
https://github.com/nimiq/core-rs-albatross/releases/tag/v1.3.0 (x_refsource_MISC)

Frequently asked questions

What is CVE-2026-34064?: CVE-2026-34064 is a medium-severity vulnerability in Nimiq Nimiq-account, classified under Integer Underflow. CVSS score: 5.3/10. Published 2026-04-22.
How severe is CVE-2026-34064?: Medium severity. CVSS v3 base score is 5.3 out of 10.