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CVE-2026-7261

Estado: AnalizadaMedia (6.3)—

In PHP versions 8.2.* before 8.2.31, 8.3.* before 8.3.31, 8.4.* before 8.4.21, and 8.5.* before 8.5.6, when SoapServer is configured with SOAP_PERSISTENCE_SESSION, the handler object is persisted across requests via session storage. However, in the case SOAP requests results in an error, the persistance is handled incorrectly, resulting in freeing the object while keeping a pointer to it, which may lead to use-after-free. This may lead to memory corruption, information disclosure, or process crashes, with confidentiality, integrity, and availability impact on the vulnerable system.

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)

PHP — PHP

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2026-7261",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-7261",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2026-05-11T13:14:14.879341Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 9.8,
          "attackVector": "NETWORK",
          "baseSeverity": "CRITICAL",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.9,
        "exploitabilityScore": 3.9
      }
    ],
    "cvssMetricV40": [
      {
        "type": "Secondary",
        "source": "security@php.net",
        "cvssData": {
          "Safety": "PRESENT",
          "version": "4.0",
          "Recovery": "NOT_DEFINED",
          "baseScore": 6.3,
          "Automatable": "YES",
          "attackVector": "NETWORK",
          "baseSeverity": "MEDIUM",
          "valueDensity": "NOT_DEFINED",
          "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:L/SC:L/SI:L/SA:L/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:P/AU:Y/R:X/V:X/RE:M/U:Amber",
          "exploitMaturity": "NOT_DEFINED",
          "providerUrgency": "AMBER",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "attackRequirements": "PRESENT",
          "privilegesRequired": "NONE",
          "subIntegrityImpact": "LOW",
          "vulnIntegrityImpact": "LOW",
          "integrityRequirement": "NOT_DEFINED",
          "modifiedAttackVector": "NOT_DEFINED",
          "subAvailabilityImpact": "LOW",
          "vulnAvailabilityImpact": "LOW",
          "availabilityRequirement": "NOT_DEFINED",
          "modifiedUserInteraction": "NOT_DEFINED",
          "modifiedAttackComplexity": "NOT_DEFINED",
          "subConfidentialityImpact": "LOW",
          "vulnConfidentialityImpact": "LOW",
          "confidentialityRequirement": "NOT_DEFINED",
          "modifiedAttackRequirements": "NOT_DEFINED",
          "modifiedPrivilegesRequired": "NOT_DEFINED",
          "modifiedSubIntegrityImpact": "NOT_DEFINED",
          "modifiedVulnIntegrityImpact": "NOT_DEFINED",
          "vulnerabilityResponseEffort": "MODERATE",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
          "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
          "modifiedSubConfidentialityImpact": "NOT_DEFINED",
          "modifiedVulnConfidentialityImpact": "NOT_DEFINED"
        }
      }
    ]
  },
  "affected": [
    {
      "source": "security@php.net",
      "affectedData": [
        {
          "vendor": "PHP Group",
          "product": "PHP",
          "versions": [
            {
              "status": "affected",
              "version": "8.2.*",
              "lessThan": "8.2.31",
              "versionType": "semver"
            },
            {
              "status": "affected",
              "version": "8.3.*",
              "lessThan": "8.3.31",
              "versionType": "semver"
            },
            {
              "status": "affected",
              "version": "8.4.*",
              "lessThan": "8.4.21",
              "versionType": "semver"
            },
            {
              "status": "affected",
              "version": "8.5.*",
              "lessThan": "8.5.6",
              "versionType": "semver"
            }
          ],
          "packageName": "soap",
          "defaultStatus": "affected"
        }
      ]
    }
  ],
  "published": "2026-05-10T05:16:11.640",
  "references": [
    {
      "url": "https://github.com/php/php-src/security/advisories/GHSA-m33r-qmcv-p97q",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "security@php.net"
    }
  ],
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "security@php.net",
      "description": [
        {
          "lang": "en",
          "value": "CWE-416"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "In PHP versions 8.2.* before 8.2.31, 8.3.* before 8.3.31, 8.4.* before 8.4.21, and 8.5.* before 8.5.6, when SoapServer is configured with SOAP_PERSISTENCE_SESSION, the handler object is persisted across requests via session storage. However, in the case SOAP requests results in an error, the persistance is handled incorrectly, resulting in freeing the object while keeping a pointer to it, which may lead to use-after-free. This may lead to memory corruption, information disclosure, or process crashes, with confidentiality, integrity, and availability impact on the vulnerable system."
    },
    {
      "lang": "es",
      "value": "En versiones de PHP 8.2.* anteriores a 8.2.31, 8.3.* anteriores a 8.3.31, 8.4.* anteriores a 8.4.21, y 8.5.* anteriores a 8.5.6, cuando SoapServer está configurado con SOAP_PERSISTENCE_SESSION, el objeto gestor es persistido entre solicitudes a través del almacenamiento de sesión. Sin embargo, en el caso de que las solicitudes SOAP resulten en un error, la persistencia se maneja incorrectamente, lo que resulta en la liberación del objeto mientras se mantiene un puntero a él, lo que puede llevar a uso después de liberación. Esto puede llevar a corrupción de memoria, revelación de información, o caídas del proceso, con impacto en la confidencialidad, integridad y disponibilidad del sistema vulnerable."
    }
  ],
  "lastModified": "2026-07-24T08:10:00.150",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:php:php:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "A892B6FF-F4EB-40C6-8DD0-D2246A71D271",
              "versionEndExcluding": "8.2.31",
              "versionStartIncluding": "8.2.0"
            },
            {
              "criteria": "cpe:2.3:a:php:php:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "9DBBB51D-F0C4-4CEC-9B6B-33D0BF0044A5",
              "versionEndExcluding": "8.3.31",
              "versionStartIncluding": "8.3.0"
            },
            {
              "criteria": "cpe:2.3:a:php:php:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "BA663C03-392C-41CC-BD11-4A1245203C42",
              "versionEndExcluding": "8.4.21",
              "versionStartIncluding": "8.4.0"
            },
            {
              "criteria": "cpe:2.3:a:php:php:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "6101DA12-5AA1-4882-A52A-61FB74254F9A",
              "versionEndExcluding": "8.5.6",
              "versionStartIncluding": "8.5.0"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "security@php.net"
}