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Vulnerability record · CVE-2026-32605 · published 13 April 2026

CVE-2026-32605: Nimiq proof-of-stake out-of-bounds read vulnerability

Nimiq · Nimiq Proof Of Stake

nimiq/core-rs-albatross is a Rust implementation of the Nimiq Proof-of-Stake protocol based on the Albatross consensus algorithm. Prior to version 1.3.0, an untrusted peer could crash a validator by publishing a signed tendermint proposal message where signer == validators.num_validators(). ProposalSender::send uses > instead of >= for the signer bounds check, so the equality case passes and reaches validators.get_validator_by_slot_band(signer), which panics with an out-of-bounds index before any signature verification runs. This issue has been fixed in version 1.3.0.

7.5 CVSS 3.1 High EPSS 0.62% · top 52.4% CWE-125 · Out-of-bounds readCWE-193 · CWE-193
7.5CVSS 3.1 base score
0.62%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
4References
17 Jun 2026Last modified by NVD

Description

nimiq/core-rs-albatross is a Rust implementation of the Nimiq Proof-of-Stake protocol based on the Albatross consensus algorithm. Prior to version 1.3.0, an untrusted peer could crash a validator by publishing a signed tendermint proposal message where signer == validators.num_validators(). ProposalSender::send uses > instead of >= for the signer bounds check, so the equality case passes and reaches validators.get_validator_by_slot_band(signer), which panics with an out-of-bounds index before any signature verification runs. This issue has been fixed in version 1.3.0.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/nimiq/core-rs-albatross/commit/9199364b60c7acae4219800d194bbe07d2997b8c Patch
https://github.com/nimiq/core-rs-albatross/pull/3661 Issue TrackingPatch
https://github.com/nimiq/core-rs-albatross/releases/tag/v1.3.0 Release Notes
https://github.com/nimiq/core-rs-albatross/security/advisories/GHSA-g99c-h7j7-rfhv PatchVendor Advisory

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Source: NIST National Vulnerability Database (record CVE-2026-32605), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.