CVE-2026-9563

{
  "id": "CVE-2026-9563",
  "sourceIdentifier": "[email protected]",
  "published": "2026-07-02T09:16:19.247",
  "lastModified": "2026-10-25T21:10:00.770",
  "vulnStatus": "Deferred",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In Eclipse Parsson published Maven Central artifacts before version 1.1.8, the JSON parser did not enforce a default maximum on the number of characters consumed while parsing a single JSON document. Applications that parse attacker- controlled JSON can be forced to consume excessive CPU and memory by processing very large documents, including large arrays, objects, strings, numbers, whitespace, or nested structures, resulting in a denial of service. Eclipse Parsson 1.1.8 introduces a configurable maximum parsing limit with a default limit of 15 million parser-consumed characters."
    },
    {
      "lang": "es",
      "value": "En los artefactos de Maven Central publicados por Eclipse Parsson antes de la versión 1.1.8, el analizador JSON no aplicaba un máximo predeterminado en el número de caracteres consumidos al analizar un único documento JSON. Las aplicaciones que analizan JSON controlado por el atacante pueden ser forzadas a consumir CPU y memoria excesivas al procesar documentos muy grandes, incluyendo grandes arrays, objetos, cadenas, números, espacios en blanco o estructuras anidadas, resultando en una denegación de servicio. Eclipse Parsson 1.1.8 introduce un límite máximo de análisis configurable con un límite predeterminado de 15 millones de caracteres consumidos por el analizador."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
        {
          "vendor": "Eclipse Foundation",
          "product": "Eclipse Parsson",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "1.0.0",
              "lessThanOrEqual": "1.1.7",
              "versionType": "semver",
              "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": "2026-07-02T12:27:19.754441Z",
          "id": "CVE-2026-9563",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "version": "2.0.3"
        }
      }
    ]
  },
  "weaknesses": [
    {
      "source": "[email protected]",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-400"
        },
        {
          "lang": "en",
          "value": "CWE-770"
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://github.com/eclipse-ee4j/parsson/commit/134e8d101aa74c8b9302d0cb62f6ccb4912a9d0c",
      "source": "[email protected]"
    },
    {
      "url": "https://github.com/eclipse-ee4j/parsson/pull/169",
      "source": "[email protected]"
    },
    {
      "url": "https://github.com/eclipse-ee4j/parsson/tree/1.1.8",
      "source": "[email protected]"
    },
    {
      "url": "https://gitlab.eclipse.org/security/vulnerability-reports/-/work_items/444",
      "source": "[email protected]"
    },
    {
      "url": "https://repo.maven.apache.org/maven2/org/eclipse/parsson/parsson/1.1.8/",
      "source": "[email protected]"
    },
    {
      "url": "https://gitlab.eclipse.org/security/vulnerability-reports/-/work_items/444",
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"
    }
  ]
}