FKIE_CVE-2025-48886

Vulnerability from fkie_nvd - Published: 2025-06-19 15:15 - Updated: 2025-06-23 20:16
Severity ?
4.8 (Medium) - CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:N/I:H/A:N
Summary
Hydra is a layer-two scalability solution for Cardano. Prior to version 0.22.0, the process assumes L1 event finality and does not consider failed transactions. Currently, Cardano L1 is monitored for certain events which are necessary for state progression. At the moment, Hydra considers those events as finalized as soon as they are recognized by the node participants making such transactions the target of re-org attacks. The system does not currently consider the fact that failed transactions on the Cardano L1 can indeed appear in blocks because these transactions are so infrequent. This issue has been patched in version 0.22.0.
References
security-advisories@github.comhttps://github.com/cardano-scaling/hydra/commit/2bc6a82ef6dbfa8b94e1c11d55253713065f605e
security-advisories@github.comhttps://github.com/cardano-scaling/hydra/commit/fb22d968964bf5d5b79227cc845d871147044ce7
security-advisories@github.comhttps://github.com/cardano-scaling/hydra/security/advisories/GHSA-qr9f-mpgf-wp25
Impacted products
Vendor Product Version
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{
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Hydra is a layer-two scalability solution for Cardano. Prior to version 0.22.0, the process assumes L1 event finality and does not consider failed transactions. Currently, Cardano L1 is monitored for certain events which are necessary for state progression. At the moment, Hydra considers those events as finalized as soon as they are recognized by the node participants making such transactions the target of re-org attacks. The system does not currently consider the fact that failed transactions on the Cardano L1 can indeed appear in blocks because these transactions are so infrequent. This issue has been patched in version 0.22.0."
    },
    {
      "lang": "es",
      "value": "Hydra es una soluci\u00f3n de escalabilidad de capa dos para Cardano. Antes de la versi\u00f3n 0.22.0, el proceso asum\u00eda la finalizaci\u00f3n de los eventos L1 y no consideraba las transacciones fallidas. Actualmente, Cardano L1 se monitoriza para detectar ciertos eventos necesarios para la progresi\u00f3n del estado. Hydra considera estos eventos como finalizados en cuanto los reconocen los participantes del nodo, lo que convierte a estas transacciones en blanco de ataques de reorganizaci\u00f3n. El sistema no considera que las transacciones fallidas en Cardano L1 puedan aparecer en bloques debido a su baja frecuencia. Este problema se ha corregido en la versi\u00f3n 0.22.0."
    }
  ],
  "id": "CVE-2025-48886",
  "lastModified": "2025-06-23T20:16:59.783",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "HIGH",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 4.8,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "REQUIRED",
          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:N/I:H/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 1.2,
        "impactScore": 3.6,
        "source": "security-advisories@github.com",
        "type": "Secondary"
      }
    ]
  },
  "published": "2025-06-19T15:15:20.473",
  "references": [
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/cardano-scaling/hydra/commit/2bc6a82ef6dbfa8b94e1c11d55253713065f605e"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/cardano-scaling/hydra/commit/fb22d968964bf5d5b79227cc845d871147044ce7"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/cardano-scaling/hydra/security/advisories/GHSA-qr9f-mpgf-wp25"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Awaiting Analysis",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-755"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Secondary"
    }
  ]
}


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