FKIE_CVE-2025-50537

Vulnerability from fkie_nvd - Published: 2026-01-26 16:15 - Updated: 2026-02-04 15:11
Severity ?
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Summary
Stack overflow vulnerability in eslint before 9.26.0 when serializing objects with circular references in eslint/lib/shared/serialization.js. The exploit is triggered via the RuleTester.run() method, which validates test cases and checks for duplicates. During validation, the internal function checkDuplicateTestCase() is called, which in turn uses the isSerializable() function for serialization checks. When a circular reference object is passed in, isSerializable() enters infinite recursion, ultimately causing a stack overflow.
References
cve@mitre.orghttps://gist.github.com/lyyffee/2ee1815e5c2da82c05e9838b9bfefbbcThird Party Advisory
cve@mitre.orghttps://github.com/eslint/eslint/issues/19646Exploit, Issue Tracking, Third Party Advisory
Impacted products
Vendor Product Version
openjsf eslint *
To clipboard 

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:openjsf:eslint:*:*:*:*:*:node.js:*:*",
              "matchCriteriaId": "F7AC358D-8192-4DFC-8039-5C0B0B14E714",
              "versionEndExcluding": "9.26.0",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Stack overflow vulnerability in eslint before 9.26.0 when serializing objects with circular references in eslint/lib/shared/serialization.js. The exploit is triggered via the RuleTester.run() method, which validates test cases and checks for duplicates. During validation, the internal function checkDuplicateTestCase() is called, which in turn uses the isSerializable() function for serialization checks. When a circular reference object is passed in, isSerializable() enters infinite recursion, ultimately causing a stack overflow."
    },
    {
      "lang": "es",
      "value": "Vulnerabilidad de desbordamiento de pila en eslint anterior a la 9.26.0 al serializar objetos con referencias circulares en eslint/lib/shared/serialization.js. El exploit se activa a trav\u00e9s del m\u00e9todo RuleTester.run(), que valida los casos de prueba y busca duplicados. Durante la validaci\u00f3n, se llama a la funci\u00f3n interna checkDuplicateTestCase(), que a su vez utiliza la funci\u00f3n isSerializable() para las comprobaciones de serializaci\u00f3n. Cuando se pasa un objeto con referencia circular, isSerializable() entra en recursi\u00f3n infinita, lo que finalmente causa un desbordamiento de pila."
    }
  ],
  "id": "CVE-2025-50537",
  "lastModified": "2026-02-04T15:11:00.737",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 5.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "REQUIRED",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 3.6,
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "type": "Secondary"
      }
    ]
  },
  "published": "2026-01-26T16:15:58.330",
  "references": [
    {
      "source": "cve@mitre.org",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://gist.github.com/lyyffee/2ee1815e5c2da82c05e9838b9bfefbbc"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
        "Exploit",
        "Issue Tracking",
        "Third Party Advisory"
      ],
      "url": "https://github.com/eslint/eslint/issues/19646"
    }
  ],
  "sourceIdentifier": "cve@mitre.org",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-674"
        }
      ],
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "type": "Secondary"
    }
  ]
}


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