FKIE_CVE-2026-46542

Vulnerability from fkie_nvd - Published: 2026-06-10 00:16 - Updated: 2026-07-23 09:10
Severity
4.3 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L
Summary
Nimiq is a Rust implementation of the Nimiq Proof-of-Stake protocol based on the Albatross consensus algorithm. Prior to version 1.4.0, a denial-of-service vulnerability exists in the Ed25519 multisig delinearization code path. Ed25519PublicKey::delinearize() in keys/src/multisig/mod.rs called .unwrap() on curve point decompression, which panics when a public key is constructed from 32 bytes that do not represent a valid point on the Ed25519 curve. Ed25519PublicKey construction only validates byte length, not curve membership, so invalid keys can reach the delinearization path and crash the hosting process. This issue has been patched in version 1.4.0.
References
security-advisories@github.comhttps://github.com/nimiq/core-rs-albatross/pull/3713
security-advisories@github.comhttps://github.com/nimiq/core-rs-albatross/releases/tag/v1.4.0
security-advisories@github.comhttps://github.com/nimiq/core-rs-albatross/security/advisories/GHSA-h9cc-w26m-j342
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "core-rs-albatross",
          "vendor": "nimiq",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 1.4.0"
            }
          ]
        }
      ],
      "source": "security-advisories@github.com"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Nimiq is a Rust implementation of the Nimiq Proof-of-Stake protocol based on the Albatross consensus algorithm. Prior to version 1.4.0, a denial-of-service vulnerability exists in the Ed25519 multisig delinearization code path. Ed25519PublicKey::delinearize() in keys/src/multisig/mod.rs called .unwrap() on curve point decompression, which panics when a public key is constructed from 32 bytes that do not represent a valid point on the Ed25519 curve. Ed25519PublicKey construction only validates byte length, not curve membership, so invalid keys can reach the delinearization path and crash the hosting process. This issue has been patched in version 1.4.0."
    },
    {
      "lang": "es",
      "value": "Nimiq es una implementaci\u00f3n en Rust del protocolo Nimiq Proof-of-Stake basado en el algoritmo de consenso Albatross. Antes de la versi\u00f3n 1.4.0, existe una vulnerabilidad de denegaci\u00f3n de servicio en la ruta de c\u00f3digo de deslinearizaci\u00f3n multisig Ed25519. Ed25519PublicKey::delinearize() en keys/src/multisig/mod.rs llam\u00f3 a .unwrap() en la descompresi\u00f3n de puntos de curva, lo que provoca un p\u00e1nico cuando se construye una clave p\u00fablica a partir de 32 bytes que no representan un punto v\u00e1lido en la curva Ed25519. La construcci\u00f3n de Ed25519PublicKey solo valida la longitud en bytes, no la pertenencia a la curva, por lo que las claves no v\u00e1lidas pueden alcanzar la ruta de deslinearizaci\u00f3n y bloquear el proceso anfitri\u00f3n. Este problema ha sido parcheado en la versi\u00f3n 1.4.0."
    }
  ],
  "id": "CVE-2026-46542",
  "lastModified": "2026-07-23T09:10:00.113",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "LOW",
          "baseScore": 4.3,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "REQUIRED",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L",
          "version": "3.1"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 1.4,
        "source": "security-advisories@github.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-46542",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-06-10T13:10:51.570876Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-06-10T00:16:54.500",
  "references": [
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/nimiq/core-rs-albatross/pull/3713"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/nimiq/core-rs-albatross/releases/tag/v1.4.0"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/nimiq/core-rs-albatross/security/advisories/GHSA-h9cc-w26m-j342"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-617"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Secondary"
    }
  ]
}



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