CVE-2026-34065: nimiq-primitives Node Crash Due To Missing Vulnerability

HIGH

Advisory Identifier: GHSA-7c4j-2m43-2mgh

CVSS 7.5

Published 2026-04-22

Advisory Summary

CVE-2026-34065 is a HIGH (CVSS 7.5) node crash due to missing vulnerability (CWE-755: Improper Handling of Exceptional Conditions) affecting nimiq-primitives libraries in the crates.io ecosystem. The issue involves node crash due to missing interlink validation in election macro block proposals. Remediation is available in the latest vendor maintenance releases.

CVE-2026-34065 at a Glance

CVE Identifier CVE-2026-34065

GHSA Identifier GHSA-7c4j-2m43-2mgh

Severity HIGH

CVSS v3.1 Base Score 7.5

CWE Classification CWE-755: Improper Handling of Exceptional Conditions

Affected Product nimiq-primitives

Package Ecosystem crates.io

Published Date 2026-04-22

Last Updated 2026-04-27

Security Impact

CVSS: 7.5

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H).

Attack Vector Network (AV:N)

Attack Complexity Low (AC:L)

Privileges Required None (PR:N)

User Interaction None (UI:N)

Scope Unchanged (S:U)

Confidentiality None (C:N)

Integrity None (I:N)

Availability High (A:H)

How to Fix CVE-2026-34065

To remediate this vulnerability, upgrade all affected nimiq-primitives dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

nimiq-primitives fixed: Latest secure release

Upgrade nimiq-primitives to Latest secure release

Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release:

inspect dependencies for nimiq-primitives

How to Check if You Are Affected

To determine whether your application is affected by CVE-2026-34065, inspect your project dependencies for nimiq-primitives:

inspect dependencies for nimiq-primitives

Analyze the terminal output to locate any version of nimiq-primitives in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than the patched release), your application is affected.

Note: Verify declared build manifests and deployed runtime container environments.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-755: Improper Handling of Exceptional Conditions, where the product does not handle or incorrectly handles an exceptional condition. In nimiq-primitives, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

### Impact An untrusted p2p peer can cause a node to panic by announcing an election macro block whose `validators` set contains an invalid compressed BLS voting key. Hashing an election macro header hashes `validators` and reaches `Validators::voting_keys()`, which calls `validator.voting_key.uncompress().unwrap()` and panics on invalid bytes. ### Patches [The patch for this vulnerability](https://github.com/nimiq/core-rs-albatross/commit/e10eaebcd7774e5da6d0ff5e88ed13503474f0ff) is included as part of [v1.3.0](https://github.com/nimiq/core-rs-albatross/releases/tag/v1.3.0). ### Workarounds No known workarounds.

CVE-2026-34065 Affected nimiq-primitives Versions

1 component(s)

Product / Package	Ecosystem	Affected Versions	Fixed Version
nimiq-primitives	crates.io	≤ 0.2.0

References

GitHub Advisory / Wiki ADVISORY

https://github.com/nimiq/core-rs-albatross/security/advisories/GHSA-7c4j-2m43-2mgh

NVD — CVE-2026-34065 NVD

https://nvd.nist.gov/vuln/detail/CVE-2026-34065

nimiq-primitives Source Repository REPOSITORY

https://github.com/nimiq/core-rs-albatross/pull/3662

Security Fix Commit FIX COMMIT

https://github.com/nimiq/core-rs-albatross/commit/e10eaebcd7774e5da6d0ff5e88ed13503474f0ff

nimiq-primitives Source Repository REPOSITORY

https://github.com/nimiq/core-rs-albatross

nimiq-primitives Release RELEASE

https://github.com/nimiq/core-rs-albatross/releases/tag/v1.3.0

Frequently Asked Questions

What is CVE-2026-34065?

CVE-2026-34065 is a security vulnerability in nimiq-primitives involving Node crash due to missing interlink validation in election macro block proposals under CWE-755: Improper Handling of Exceptional Conditions.

Which nimiq-primitives versions are affected?

Affected versions include releases prior to current release patches across affected packages: nimiq-primitives.

What version fixes CVE-2026-34065?

Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.

Is nimiq-primitives affected?

Yes, nimiq-primitives is affected in releases prior to Latest secure release. Upgrade your dependency to Latest secure release or later.

What is the CVSS score of CVE-2026-34065?

CVE-2026-34065 has a CVSS v3.1 base score of 7.5 (HIGH) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

What CWE is associated with CVE-2026-34065?

CVE-2026-34065 is classified under CWE-755: Improper Handling of Exceptional Conditions (The product does not handle or incorrectly handles an exceptional condition.).

How can I check crates.io dependencies for CVE-2026-34065?

Run the dependency tree command: 'inspect dependencies for nimiq-primitives'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.

Machine-readable OSV JSON OSV v1.5 Schema

Normalized schema output

View Raw JSON

{
  "schema_version" : "1.4.0",
  "id" : "GHSA-7c4j-2m43-2mgh",
  "modified" : "2026-04-27T16:22:32Z",
  "published" : "2026-04-22T19:19:28Z",
  "aliases" : [ "CVE-2026-34065" ],
  "summary" : "nimiq-primitives: Node crash due to missing interlink validation in election macro block proposals",
  "details" : "### Impact\nAn untrusted p2p peer can cause a node to panic by announcing an election macro block whose `validators` set contains an invalid compressed BLS voting key.\n\nHashing an election macro header hashes `validators` and reaches `Validators::voting_keys()`, which calls `validator.voting_key.uncompress().unwrap()` and panics on invalid bytes.\n\n### Patches\n[The patch for this vulnerability](https://github.com/nimiq/core-rs-albatross/commit/e10eaebcd7774e5da6d0ff5e88ed13503474f0ff) is included as part of [v1.3.0](https://github.com/nimiq/core-rs-albatross/releases/tag/v1.3.0).\n\n### Workarounds\nNo known workarounds.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "crates.io",
      "name" : "nimiq-primitives"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "last_affected" : "0.2.0"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/nimiq/core-rs-albatross/security/advisories/GHSA-7c4j-2m43-2mgh"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-34065"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/nimiq/core-rs-albatross/pull/3662"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/nimiq/core-rs-albatross/commit/e10eaebcd7774e5da6d0ff5e88ed13503474f0ff"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/nimiq/core-rs-albatross"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/nimiq/core-rs-albatross/releases/tag/v1.3.0"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-252", "CWE-755" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2026-04-22T19:19:28Z",
    "nvd_published_at" : "2026-04-22T20:16:41Z"
  }
}

CVSS V3

7.5 HIGH