nimiq/core-rs-albatross is a Rust implementation of the Nimiq Proof-of-Stake protocol based on the Albatross consensus algorithm. Prior to version 1.2.2, a malicious or compromised validator that is elected as proposer can publish a macro block proposal where `header.body_root` does not match the actual macro body hash. The proposal can pass proposal verification because the macro proposal verification path validates the header but does not validate the binding `body_root == hash(body)`; later code expects this binding and may panic on mismatch, crashing validators. Note that the impact is only for validator nodes. The patch for this vulnerability is formally released as part of v1.2.2. The patch adds the corresponding body root verification in the proposal checks. No known workarounds are available.
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Fixes

Solution

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Workaround

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History

Tue, 03 Mar 2026 21:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Mon, 02 Mar 2026 12:15:00 +0000

Type Values Removed Values Added
First Time appeared Nimiq
Nimiq core-rs-albatross
Vendors & Products Nimiq
Nimiq core-rs-albatross

Fri, 27 Feb 2026 21:30:00 +0000

Type Values Removed Values Added
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 1.2.2, a malicious or compromised validator that is elected as proposer can publish a macro block proposal where `header.body_root` does not match the actual macro body hash. The proposal can pass proposal verification because the macro proposal verification path validates the header but does not validate the binding `body_root == hash(body)`; later code expects this binding and may panic on mismatch, crashing validators. Note that the impact is only for validator nodes. The patch for this vulnerability is formally released as part of v1.2.2. The patch adds the corresponding body root verification in the proposal checks. No known workarounds are available.
Title nimiq/core-rs-albatross's nimiq-blockchain missing proposal body root verification
Weaknesses CWE-354
References
Metrics cvssV3_1

{'score': 7.1, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-03-03T20:31:59.946Z

Reserved: 2026-02-27T15:33:57.289Z

Link: CVE-2026-28402

cve-icon Vulnrichment

Updated: 2026-03-03T20:31:55.709Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-02-27T22:16:23.343

Modified: 2026-03-02T20:30:10.923

Link: CVE-2026-28402

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-03-02T12:04:50Z

Weaknesses