CVE-2026-34065

{
  "id": "CVE-2026-34065",
  "sourceIdentifier": "[email protected]",
  "published": "2026-04-22T20:16:41.077",
  "lastModified": "2026-10-26T22:10:00.163",
  "vulnStatus": "Analyzed",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "nimiq-primitives contains primitives (e.g., block, account, transaction) to be used in Nimiq's Rust implementation. Prior to version 1.3.0, 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. The patch for this vulnerability is included as part of v1.3.0. No known workarounds are available."
    },
    {
      "lang": "es",
      "value": "nimiq-primitives contiene primitivas (p. ej., bloque, cuenta, transacción) para ser utilizadas en la implementación de Nimiq en Rust. Antes de la versión 1.3.0, un par p2p no confiable puede causar un pánico en un nodo al anunciar un macrobloque de elección cuyo conjunto de ’validators’ contiene una clave de votación BLS comprimida inválida. El hash de una cabecera de macro de elección aplica hash a ’validators’ y llega a ’Validators::voting_keys()’, que llama a ’validator.voting_key.uncompress().unwrap()’ y entra en pánico con bytes inválidos. El parche para esta vulnerabilidad está incluido como parte de la v1.3.0. No se conocen soluciones alternativas disponibles."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
        {
          "vendor": "nimiq",
          "product": "nimiq-primitives",
          "versions": [
            {
              "version": "< 1.3.0",
              "status": "affected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "[email protected]",
        "type": "Secondary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "baseScore": 7.5,
          "baseSeverity": "HIGH",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "NONE",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "availabilityImpact": "HIGH"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 3.6
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "timestamp": "2026-04-23T14:16:52.791989Z",
          "id": "CVE-2026-34065",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "version": "2.0.3"
        }
      }
    ]
  },
  "weaknesses": [
    {
      "source": "[email protected]",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-252"
        },
        {
          "lang": "en",
          "value": "CWE-755"
        }
      ]
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:nimiq:nimiq_proof-of-stake:*:*:*:*:*:rust:*:*",
              "versionEndExcluding": "1.3.0",
              "matchCriteriaId": "CD0CAAD1-7626-4A4A-A6F8-9DC46FE50731"
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  "references": [
    {
      "url": "https://github.com/nimiq/core-rs-albatross/commit/e10eaebcd7774e5da6d0ff5e88ed13503474f0ff",
      "source": "[email protected]",
      "tags": [
        "Patch"
      ]
    },
    {
      "url": "https://github.com/nimiq/core-rs-albatross/pull/3662",
      "source": "[email protected]",
      "tags": [
        "Issue Tracking",
        "Patch"
      ]
    },
    {
      "url": "https://github.com/nimiq/core-rs-albatross/releases/tag/v1.3.0",
      "source": "[email protected]",
      "tags": [
        "Release Notes"
      ]
    },
    {
      "url": "https://github.com/nimiq/core-rs-albatross/security/advisories/GHSA-7c4j-2m43-2mgh",
      "source": "[email protected]",
      "tags": [
        "Patch",
        "Vendor Advisory"
      ]
    }
  ]
}