FKIE_CVE-2026-107376

Vulnerability from fkie_nvd - Published: 2026-10-08 18:17 - Updated: 2026-10-08 21:34
Severity
8.2 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H
Summary
webonyx graphql-php is a PHP implementation of the GraphQL specification. Prior to 15.32.3, GraphQL\Language\Parser performs recursive descent without a recursion limit in parseSelectionSet, parseValueLiteral, and parseTypeReference. A remote attacker can submit deeply nested selection sets, object or list values, or list types that exhaust the PHP process stack during pre-validation parsing, before query validation and complexity controls run. The resulting SIGSEGV can terminate PHP-FPM workers or long-running Swoole, RoadRunner, ReactPHP, or CLI processes and cannot be caught by application-level exception handling. This issue is fixed in version 15.32.3.
References
security-advisories@github.comhttps://github.com/webonyx/graphql-php/commit/6c1d6009a0f7557f66753bcfd07badd15acf77f4
security-advisories@github.comhttps://github.com/webonyx/graphql-php/commit/7b7f2080ca5f7d5340a696fc5701b19a9222d2c2
security-advisories@github.comhttps://github.com/webonyx/graphql-php/releases/tag/v15.32.3
security-advisories@github.comhttps://github.com/webonyx/graphql-php/security/advisories/GHSA-r7cg-qjjm-xhqq
134c704f-9b21-4f2e-91b3-4a467353bcc0https://github.com/webonyx/graphql-php/security/advisories/GHSA-r7cg-qjjm-xhqq
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "graphql-php",
          "vendor": "webonyx",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 15.32.3"
            }
          ]
        }
      ],
      "source": "security-advisories@github.com"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "webonyx graphql-php is a PHP implementation of the GraphQL specification. Prior to 15.32.3, GraphQL\\Language\\Parser performs recursive descent without a recursion limit in parseSelectionSet, parseValueLiteral, and parseTypeReference. A remote attacker can submit deeply nested selection sets, object or list values, or list types that exhaust the PHP process stack during pre-validation parsing, before query validation and complexity controls run. The resulting SIGSEGV can terminate PHP-FPM workers or long-running Swoole, RoadRunner, ReactPHP, or CLI processes and cannot be caught by application-level exception handling. This issue is fixed in version 15.32.3."
    }
  ],
  "id": "CVE-2026-107376",
  "lastModified": "2026-10-08T21:34:48.800",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 8.2,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "NONE",
          "integrityImpact": "LOW",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 4.2,
        "source": "security-advisories@github.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-107376",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-10-08T18:39:30.355689Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-10-08T18:17:22.373",
  "references": [
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/webonyx/graphql-php/commit/6c1d6009a0f7557f66753bcfd07badd15acf77f4"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/webonyx/graphql-php/commit/7b7f2080ca5f7d5340a696fc5701b19a9222d2c2"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/webonyx/graphql-php/releases/tag/v15.32.3"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/webonyx/graphql-php/security/advisories/GHSA-r7cg-qjjm-xhqq"
    },
    {
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "url": "https://github.com/webonyx/graphql-php/security/advisories/GHSA-r7cg-qjjm-xhqq"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Awaiting Analysis",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-674"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Secondary"
    }
  ]
}



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