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FKIE_CVE-2026-40992

Vulnerability from fkie_nvd - Published: 2026-06-11 07:16 - Updated: 2026-09-04 18:05
Severity
5.0 (Medium) - CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L
Summary
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.
References
security@vmware.comhttps://spring.io/security/cve-2026-40992Vendor Advisory
Impacted products
Vendor Product Version
vmware spring_boot *
vmware spring_boot *
vmware spring_boot *
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Spring Boot",
          "vendor": "Spring",
          "versions": [
            {
              "lessThan": "4.0.6.1",
              "status": "affected",
              "version": "4.0.0",
              "versionType": "custom"
            },
            {
              "lessThan": "3.5.14.1",
              "status": "affected",
              "version": "3.5.0",
              "versionType": "custom"
            },
            {
              "lessThan": "3.4.17",
              "status": "affected",
              "version": "3.4.0",
              "versionType": "custom"
            }
          ]
        }
      ],
      "source": "security@vmware.com"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:vmware:spring_boot:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "5250EE55-3ED8-4C6A-A6BE-A62181355250",
              "versionEndExcluding": "3.4.17",
              "versionStartIncluding": "3.4.0",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:vmware:spring_boot:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "51658B4D-BDE5-4044-A430-0D8BA22F4D69",
              "versionEndExcluding": "3.5.14.1",
              "versionStartIncluding": "3.5.0",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:vmware:spring_boot:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "90E2CB0A-AAD1-41D0-9253-D044E2A455D0",
              "versionEndExcluding": "4.0.6.1",
              "versionStartIncluding": "4.0.0",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Spring Boot\u0027s 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-configuraci\u00f3n de correo de Spring Boot no habilita la verificaci\u00f3n 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."
    }
  ],
  "id": "CVE-2026-40992",
  "lastModified": "2026-09-04T18:05:38.580",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "HIGH",
          "attackVector": "ADJACENT_NETWORK",
          "availabilityImpact": "LOW",
          "baseScore": 5.0,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "LOW",
          "integrityImpact": "LOW",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L",
          "version": "3.1"
        },
        "exploitabilityScore": 1.6,
        "impactScore": 3.4,
        "source": "security@vmware.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-40992",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-06-11T12:45:53.521120Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-06-11T07:16:27.177",
  "references": [
    {
      "source": "security@vmware.com",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://spring.io/security/cve-2026-40992"
    }
  ],
  "sourceIdentifier": "security@vmware.com",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-295"
        }
      ],
      "source": "security@vmware.com",
      "type": "Secondary"
    }
  ]
}



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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


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