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CVE-2026-40992

Estado: AnalizadaMedia (5)—

Spring Boot's Mail auto-configuration does not enable hostname verification. Applications that set the relevant JavaMail property, such as spring.mail.properties.mail.smtp.ssl.checkserveridentity=true, are not affected.

Affected versions: Spring Boot 4.0.0 through 4.0.6; 3.5.0 through 3.5.14; 3.4.0 through 3.4.16.

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)

Vmware — Spring Boot

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2026-40992",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-40992",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2026-06-11T12:45:53.521120Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "security@vmware.com",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 5,
          "attackVector": "ADJACENT_NETWORK",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L",
          "integrityImpact": "LOW",
          "userInteraction": "NONE",
          "attackComplexity": "HIGH",
          "availabilityImpact": "LOW",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "LOW"
        },
        "impactScore": 3.4,
        "exploitabilityScore": 1.6
      }
    ]
  },
  "affected": [
    {
      "source": "security@vmware.com",
      "affectedData": [
        {
          "vendor": "Spring",
          "product": "Spring Boot",
          "versions": [
            {
              "status": "affected",
              "version": "4.0.0",
              "lessThan": "4.0.6.1",
              "versionType": "custom"
            },
            {
              "status": "affected",
              "version": "3.5.0",
              "lessThan": "3.5.14.1",
              "versionType": "custom"
            },
            {
              "status": "affected",
              "version": "3.4.0",
              "lessThan": "3.4.17",
              "versionType": "custom"
            }
          ],
          "defaultStatus": "unaffected"
        }
      ]
    }
  ],
  "published": "2026-06-11T07:16:27.177",
  "references": [
    {
      "url": "https://spring.io/security/cve-2026-40992",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "security@vmware.com"
    }
  ],
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "security@vmware.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-295"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Spring Boot's Mail auto-configuration does not enable hostname verification. Applications that set the relevant JavaMail property, such as spring.mail.properties.mail.smtp.ssl.checkserveridentity=true, are not affected.\n\nAffected versions:\nSpring Boot 4.0.0 through 4.0.6; 3.5.0 through 3.5.14; 3.4.0 through 3.4.16."
    },
    {
      "lang": "es",
      "value": "La auto-configuración de correo de Spring Boot no habilita la verificación de nombre de host. Las aplicaciones que configuran la propiedad JavaMail relevante, como spring.mail.properties.mail.smtp.ssl.checkserveridentity=true, no se ven afectadas.\n\nVersiones afectadas:\nSpring Boot 4.0.0 hasta 4.0.6; 3.5.0 hasta 3.5.14; 3.4.0 hasta 3.4.16."
    }
  ],
  "lastModified": "2026-09-04T18:05:38.580",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:vmware:spring_boot:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "5250EE55-3ED8-4C6A-A6BE-A62181355250",
              "versionEndExcluding": "3.4.17",
              "versionStartIncluding": "3.4.0"
            },
            {
              "criteria": "cpe:2.3:a:vmware:spring_boot:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "51658B4D-BDE5-4044-A430-0D8BA22F4D69",
              "versionEndExcluding": "3.5.14.1",
              "versionStartIncluding": "3.5.0"
            },
            {
              "criteria": "cpe:2.3:a:vmware:spring_boot:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "90E2CB0A-AAD1-41D0-9253-D044E2A455D0",
              "versionEndExcluding": "4.0.6.1",
              "versionStartIncluding": "4.0.0"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "security@vmware.com"
}