CVE-2026-35337

{
  "id": "CVE-2026-35337",
  "sourceIdentifier": "[email protected]",
  "published": "2026-04-13T10:16:11.610",
  "lastModified": "2026-10-26T22:10:00.163",
  "vulnStatus": "Analyzed",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Deserialization of Untrusted Data vulnerability in Apache Storm.\n\nVersions Affected:\nbefore 2.8.6.\n\n\nDescription:\nWhen processing topology credentials submitted via the Nimbus Thrift API, Storm deserializes the base64-encoded TGT blob using ObjectInputStream.readObject() without any class filtering or validation. An authenticated user with topology submission rights could supply a crafted serialized object in the \"TGT\" credential field, leading to remote code execution in both the Nimbus and Worker JVMs.\n\n\nMitigation:\n2.x users should upgrade to 2.8.6.\n\n\nUsers who cannot upgrade immediately should monkey-patch an ObjectInputFilter allow-list to ClientAuthUtils.deserializeKerberosTicket() restricting deserialized classes to javax.security.auth.kerberos.KerberosTicket and its known dependencies. A guide on how to do this is available in the release notes of 2.8.6.\n\nCredit: This issue was discovered by K."
    },
    {
      "lang": "es",
      "value": "Vulnerabilidad de deserialización de datos no confiables en Apache Storm.\n\nVersiones Afectadas:\nanteriores a 2.8.6.\n\nDescripción:\nAl procesar las credenciales de topología enviadas a través de la API Thrift de Nimbus, Storm deserializa el blob TGT codificado en base64 usando ObjectInputStream.readObject() sin ningún filtrado o validación de clases. Un usuario autenticado con derechos de envío de topología podría proporcionar un objeto serializado malintencionado en el campo de credenciales ’TGT’, lo que llevaría a la ejecución remota de código tanto en las JVM de Nimbus como en las de Worker.\n\nMitigación:\nLos usuarios de 2.x deberían actualizar a 2.8.6.\n\nLos usuarios que no puedan actualizar de inmediato deberían aplicar un monkey-patch de una lista de permitidos de ObjectInputFilter a ClientAuthUtils.deserializeKerberosTicket() restringiendo las clases deserializadas a javax.security.auth.kerberos.KerberosTicket y sus dependencias conocidas. Una guía sobre cómo hacer esto está disponible en las notas de la versión 2.8.6.\n\nCrédito: Este problema fue descubierto por K."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
        {
          "vendor": "Apache Software Foundation",
          "product": "Apache Storm Client",
          "defaultStatus": "unaffected",
          "collectionURL": "https://repo.maven.apache.org/maven2/",
          "packageName": "org.apache.storm:storm-client",
          "versions": [
            {
              "version": "0",
              "lessThan": "2.8.6",
              "versionType": "semver",
              "status": "affected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {
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        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "type": "Secondary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "baseScore": 8.8,
          "baseSeverity": "HIGH",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "LOW",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "availabilityImpact": "HIGH"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 5.9
      }
    ],
    "ssvcV203": [
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        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "timestamp": "2026-04-13T00:00:00+00:00",
          "id": "CVE-2026-35337",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "role": "CISA Coordinator",
          "version": "2.0.3"
        }
      }
    ]
  },
  "weaknesses": [
    {
      "source": "[email protected]",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-502"
        }
      ]
    }
  ],
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  "references": [
    {
      "url": "https://storm.apache.org/2026/04/12/storm286-released.html",
      "source": "[email protected]",
      "tags": [
        "Release Notes",
        "Vendor Advisory"
      ]
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    {
      "url": "http://www.openwall.com/lists/oss-security/2026/04/12/6",
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
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}