CVE-2026-34061

Source
https://cve.org/CVERecord?id=CVE-2026-34061
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-34061.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-34061
Aliases
  • GHSA-gr83-j5f8-p2r5
Published
2026-04-03T22:07:40.969Z
Modified
2026-07-08T08:12:51.072516737Z
Severity
  • 4.9 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
nimiq/core-rs-albatross: Macro block proposal interlink bug
Details

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 elected validator proposer can send an election macro block whose header.interlink does not match the canonical next interlink. Honest validators accept that proposal in verifymacroblockproposal() because the proposal path validates header shape, successor relation, proposer, body root, and state, but never checks the interlink binding for election blocks. The same finalized block is later rejected by verifyblock() during push with InvalidInterlink. Because validators prevote and precommit the malformed header hash itself, the failure happens after Tendermint decides the block, not before voting. This issue has been patched in version 1.3.0.

Database specific
{
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/34xxx/CVE-2026-34061.json",
    "cwe_ids": [
        "CWE-345"
    ],
    "cna_assigner": "GitHub_M"
}
References

Affected packages

Git / github.com/nimiq/core-rs-albatross

Affected ranges

Type
GIT
Repo
https://github.com/nimiq/core-rs-albatross
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
Fixed
Database specific
{
    "source": [
        "CPE_RANGE",
        "REFERENCES"
    ],
    "cpe": "cpe:2.3:a:nimiq:nimiq_proof-of-stake:*:*:*:*:*:rust:*:*",
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "last_affected": "1.2.2"
        }
    ]
}

Affected versions

v0.*
v0.1.0
v0.1.0-rc.0
v0.1.0-rc.1
v0.1.0-rc.2
v0.1.0-rc.3
v0.10.0
v0.11.0
v0.11.1
v0.11.2
v0.11.3
v0.11.4
v0.11.5
v0.12.0
v0.12.1
v0.13.0
v0.13.1
v0.14.0
v0.15.0
v0.16.0
v0.16.1
v0.17.0
v0.18.0
v0.19.0
v0.2.0
v0.2.1
v0.2.2
v0.20.0
v0.20.1
v0.20.2
v0.20.3
v0.20.4
v0.20.5
v0.21.0
v0.21.1
v0.22.0
v0.22.1
v0.22.2
v0.22.3
v0.23.0
v0.24.0
v0.24.1
v0.24.2
v0.24.3
v0.24.4
v0.3.0
v0.3.1
v0.3.2
v0.3.3
v0.4.0
v0.4.1
v0.5.0
v0.5.1
v0.5.2
v0.5.3
v0.5.4
v0.6.0
v0.7.0
v0.8.0
v0.8.1
v0.8.2
v0.8.3
v0.9.0
v1.*
v1.0.0
v1.0.0-rc.0
v1.0.0-rc.1
v1.0.0-rc.2
v1.0.0-rc.3
v1.0.0-rc.4
v1.0.0-rc.5
v1.0.1
v1.0.2
v1.0.3
v1.0.4
v1.0.5
v1.0.6
v1.0.7
v1.0.8
v1.0.9
v1.1.0
v1.1.1
v1.2.0
v1.2.1
v1.2.2

Database specific

source
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-34061.json"