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CVE-2025-55039

Estado: ModificadaMedia (6.5)—

This issue affects Apache Spark versions before 3.4.4, 3.5.2 and 4.0.0.

Apache Spark versions before 4.0.0, 3.5.2 and 3.4.4 use an insecure default network encryption cipher for RPC communication between nodes.

When spark.network.crypto.enabled is set to true (it is set to false by default), but spark.network.crypto.cipher is not explicitly configured, Spark defaults to AES in CTR mode (AES/CTR/NoPadding), which provides encryption without authentication.

This vulnerability allows a man-in-the-middle attacker to modify encrypted RPC traffic undetected by flipping bits in ciphertext, potentially compromising heartbeat messages or application data and affecting the integrity of Spark workflows.

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To mitigate this issue, users should either configure spark.network.crypto.cipher to AES/GCM/NoPadding to enable authenticated encryption or

enable SSL encryption by setting spark.ssl.enabled to true, which provides stronger transport security.

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (1)

Apache — Spark

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2025-55039",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2025-55039",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2025-10-15T19:33:07.860034Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 6.5,
          "attackVector": "NETWORK",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N",
          "integrityImpact": "LOW",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "LOW"
        },
        "impactScore": 2.5,
        "exploitabilityScore": 3.9
      }
    ]
  },
  "affected": [
    {
      "source": "security@apache.org",
      "affectedData": [
        {
          "vendor": "Apache Software Foundation",
          "product": "Apache Spark",
          "versions": [
            {
              "status": "affected",
              "version": "3.5.0",
              "lessThan": "3.5.2",
              "versionType": "semver"
            },
            {
              "status": "affected",
              "version": "0",
              "lessThan": "3.4.4",
              "versionType": "semver"
            }
          ],
          "packageName": "org.apache.spark:spark-network-common_2.13",
          "collectionURL": "https://repo.maven.apache.org/maven2",
          "defaultStatus": "unaffected"
        },
        {
          "vendor": "Apache Software Foundation",
          "product": "Apache Spark",
          "versions": [
            {
              "status": "affected",
              "version": "3.5.0",
              "lessThan": "3.5.2",
              "versionType": "semver"
            },
            {
              "status": "affected",
              "version": "0",
              "lessThan": "3.4.4",
              "versionType": "semver"
            }
          ],
          "packageName": "org.apache.spark:spark-network-common_2.12",
          "collectionURL": "https://repo.maven.apache.org/maven2",
          "defaultStatus": "unaffected"
        }
      ]
    }
  ],
  "published": "2025-10-15T08:15:38.460",
  "references": [
    {
      "url": "https://lists.apache.org/thread/zrgyy9l85nm2c7vk36vr7bkyorg3w4qq",
      "tags": [
        "Mailing List",
        "Vendor Advisory"
      ],
      "source": "security@apache.org"
    },
    {
      "url": "http://www.openwall.com/lists/oss-security/2025/10/14/11",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "security@apache.org",
      "description": [
        {
          "lang": "en",
          "value": "CWE-326"
        },
        {
          "lang": "en",
          "value": "CWE-347"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "This issue affects Apache Spark versions before  3.4.4, 3.5.2 and 4.0.0.\n\n\n\nApache Spark versions before 4.0.0, 3.5.2 and 3.4.4 use an insecure default network encryption cipher for RPC communication between nodes.\n\nWhen spark.network.crypto.enabled is set to true (it is set to false by default), but spark.network.crypto.cipher is not explicitly configured, Spark defaults to AES in CTR mode (AES/CTR/NoPadding), which provides encryption without authentication.\n\nThis vulnerability allows a man-in-the-middle attacker to modify encrypted RPC traffic undetected by flipping bits in ciphertext, potentially compromising heartbeat messages or application data and affecting the integrity of Spark workflows.\n\n\nTo mitigate this issue, users should either configure spark.network.crypto.cipher to AES/GCM/NoPadding to enable authenticated encryption or\n\nenable SSL encryption by setting spark.ssl.enabled to true, which provides stronger transport security."
    }
  ],
  "lastModified": "2026-06-17T09:41:09.007",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:apache:spark:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "31BCFAC4-6096-41FE-82C7-2B1FEBBA485F",
              "versionEndExcluding": "3.4.4"
            },
            {
              "criteria": "cpe:2.3:a:apache:spark:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "C08715D5-2896-4CF9-8908-4780059E738F",
              "versionEndExcluding": "3.5.2",
              "versionStartIncluding": "3.5.0"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "security@apache.org"
}