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CVE-2026-40996

Estado: AnalizadaMedia (4.8)—

Wss4jSecurityInterceptor defaulted allowRSA15KeyTransportAlgorithm to true, overriding Apache WSS4J's safer default for validation RequestData. Inbound WS-Security decryption could therefore accept RSA PKCS#1 v1.5 (rsa-1_5) encrypted key material unless operators explicitly reconfigured the flag.

Affected versions: Spring Web Services 5.0.0 through 5.0.1; 4.1.0 through 4.1.3; 4.0.0 through 4.0.18; 3.1.0 through 3.1.8.

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)

Broadcom — Spring WEB Services

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2026-40996",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-40996",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2026-06-11T12:44:42.180161Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "security@vmware.com",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 4.8,
          "attackVector": "NETWORK",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N",
          "integrityImpact": "LOW",
          "userInteraction": "NONE",
          "attackComplexity": "HIGH",
          "availabilityImpact": "NONE",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "LOW"
        },
        "impactScore": 2.5,
        "exploitabilityScore": 2.2
      }
    ]
  },
  "affected": [
    {
      "source": "security@vmware.com",
      "affectedData": [
        {
          "vendor": "Spring",
          "product": "Spring Web Services",
          "versions": [
            {
              "status": "affected",
              "version": "5.0.0",
              "lessThan": "5.0.1.1",
              "versionType": "custom"
            },
            {
              "status": "affected",
              "version": "4.1.0",
              "lessThan": "4.1.3.1",
              "versionType": "custom"
            },
            {
              "status": "affected",
              "version": "4.0.0",
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              "versionType": "custom"
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              "status": "affected",
              "version": "3.1.0",
              "lessThan": "3.1.9",
              "versionType": "custom"
            }
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        }
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  ],
  "published": "2026-06-11T07:16:27.550",
  "references": [
    {
      "url": "https://spring.io/security/cve-2026-40996",
      "tags": [
        "Vendor Advisory",
        "Mitigation"
      ],
      "source": "security@vmware.com"
    }
  ],
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "security@vmware.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-327"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Wss4jSecurityInterceptor defaulted allowRSA15KeyTransportAlgorithm to true, overriding Apache WSS4J's safer default for validation RequestData. Inbound WS-Security decryption could therefore accept RSA PKCS#1 v1.5 (rsa-1_5) encrypted key material unless operators explicitly reconfigured the flag.\n\nAffected versions:\nSpring Web Services 5.0.0 through 5.0.1; 4.1.0 through 4.1.3; 4.0.0 through 4.0.18; 3.1.0 through 3.1.8."
    },
    {
      "lang": "es",
      "value": "Wss4jSecurityInterceptor estableció por defecto allowRSA15KeyTransportAlgorithm a true, anulando el valor por defecto más seguro de Apache WSS4J para la validación de RequestData. El descifrado de WS-Security entrante podría, por lo tanto, aceptar material de clave cifrado RSA PKCS#1 v1.5 (rsa-1_5) a menos que los operadores reconfiguraran explícitamente el indicador.\n\nVersiones afectadas:\nSpring Web Services 5.0.0 hasta 5.0.1; 4.1.0 hasta 4.1.3; 4.0.0 hasta 4.0.18; 3.1.0 hasta 3.1.8."
    }
  ],
  "lastModified": "2026-09-04T17:08:43.050",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
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              "criteria": "cpe:2.3:a:broadcom:spring_web_services:*:*:*:*:*:*:*:*",
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              "versionEndExcluding": "3.1.9"
            },
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              "vulnerable": true,
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              "versionEndExcluding": "4.0.19",
              "versionStartIncluding": "4.0.0"
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          "operator": "OR"
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  "sourceIdentifier": "security@vmware.com"
}