CVE-2026-61634

{
  "id": "CVE-2026-61634",
  "sourceIdentifier": "[email protected]",
  "published": "2026-08-18T17:16:59.960",
  "lastModified": "2026-10-22T22:10:00.250",
  "vulnStatus": "Awaiting Analysis",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "The RabbitMQ Java client library allows Java and JVM-based applications to connect to and interact with RabbitMQ nodes. Prior to 5.33.0, the AMQP connection tuning path records the negotiated AMQP frame_max value, but src/main/java/com/rabbitmq/client/impl/SocketFrameHandler.java and NettyFrameHandlerFactory continue to validate broker-controlled frame payload lengths against maxInboundMessageBodySize because the negotiated limit is not applied consistently through setMaxInboundFramePayloadSize. A malicious or compromised broker can send a method frame larger than the negotiated frame_max during or after connection establishment, causing the client to allocate and decode a protocol-invalid frame instead of rejecting it with MalformedFrameException. The protocol violation can disrupt the affected connection and cause client-side denial of service. This issue is fixed in version 5.33.0."
    },
    {
      "lang": "es",
      "value": "La biblioteca cliente Java de RabbitMQ permite a las aplicaciones Java y basadas en JVM conectarse e interactuar con los nodos de RabbitMQ. Antes de la versión 5.33.0, la ruta de ajuste de la conexión AMQP registra el valor AMQP frame_max negociado, pero src/main/java/com/rabbitmq/client/impl/SocketFrameHandler.java y NettyFrameHandlerFactory continúan validando las longitudes de carga útil de los marcos controladas por el intermediario contra maxInboundMessageBodySize porque el límite negociado no se aplica de manera consistente a través de setMaxInboundFramePayloadSize. Un intermediario malicioso o comprometido puede enviar un marco de método más grande que el frame_max negociado durante o después del establecimiento de la conexión, haciendo que el cliente asigne y decodifique un marco de protocolo inválido en lugar de rechazarlo con MalformedFrameException. La violación del protocolo puede interrumpir la conexión afectada y causar una denegación de servicio del lado del cliente. Este problema está solucionado en la versión 5.33.0."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
        {
          "vendor": "rabbitmq",
          "product": "rabbitmq-java-client",
          "versions": [
            {
              "version": "< 5.33.0",
              "status": "affected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {
    "cvssMetricV40": [
      {
        "source": "[email protected]",
        "type": "Secondary",
        "cvssData": {
          "version": "4.0",
          "vectorString": "CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:N/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
          "baseScore": 0.0,
          "baseSeverity": "NONE",
          "attackVector": "NETWORK",
          "attackComplexity": "HIGH",
          "attackRequirements": "PRESENT",
          "privilegesRequired": "NONE",
          "userInteraction": "NONE",
          "vulnConfidentialityImpact": "NONE",
          "vulnIntegrityImpact": "NONE",
          "vulnAvailabilityImpact": "NONE",
          "subConfidentialityImpact": "NONE",
          "subIntegrityImpact": "NONE",
          "subAvailabilityImpact": "NONE",
          "exploitMaturity": "NOT_DEFINED",
          "confidentialityRequirement": "NOT_DEFINED",
          "integrityRequirement": "NOT_DEFINED",
          "availabilityRequirement": "NOT_DEFINED",
          "modifiedAttackVector": "NOT_DEFINED",
          "modifiedAttackComplexity": "NOT_DEFINED",
          "modifiedAttackRequirements": "NOT_DEFINED",
          "modifiedPrivilegesRequired": "NOT_DEFINED",
          "modifiedUserInteraction": "NOT_DEFINED",
          "modifiedVulnConfidentialityImpact": "NOT_DEFINED",
          "modifiedVulnIntegrityImpact": "NOT_DEFINED",
          "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
          "modifiedSubConfidentialityImpact": "NOT_DEFINED",
          "modifiedSubIntegrityImpact": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
          "Safety": "NOT_DEFINED",
          "Automatable": "NOT_DEFINED",
          "Recovery": "NOT_DEFINED",
          "valueDensity": "NOT_DEFINED",
          "vulnerabilityResponseEffort": "NOT_DEFINED",
          "providerUrgency": "NOT_DEFINED"
        }
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "timestamp": "2026-08-18T17:26:46.490198Z",
          "id": "CVE-2026-61634",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "version": "2.0.3"
        }
      }
    ]
  },
  "weaknesses": [
    {
      "source": "[email protected]",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-20"
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://github.com/rabbitmq/rabbitmq-java-client/commit/08790f09686173eb17b48d08a25edcb32e71a591",
      "source": "[email protected]"
    },
    {
      "url": "https://github.com/rabbitmq/rabbitmq-java-client/commit/b491075f42e89967610c40beded68d3680cfd472",
      "source": "[email protected]"
    },
    {
      "url": "https://github.com/rabbitmq/rabbitmq-java-client/pull/1994",
      "source": "[email protected]"
    },
    {
      "url": "https://github.com/rabbitmq/rabbitmq-java-client/pull/1995",
      "source": "[email protected]"
    },
    {
      "url": "https://github.com/rabbitmq/rabbitmq-java-client/releases/tag/v5.33.0",
      "source": "[email protected]"
    },
    {
      "url": "https://github.com/rabbitmq/rabbitmq-java-client/security/advisories/GHSA-5xwg-cfvj-gff5",
      "source": "[email protected]"
    }
  ]
}