FKIE_CVE-2025-6984

Vulnerability from fkie_nvd - Published: 2025-09-04 10:42 - Updated: 2026-10-19 17:10
Severity
7.5 (High) - CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Summary
The langchain-ai/langchain project, specifically the EverNoteLoader component, is vulnerable to XML External Entity (XXE) attacks due to insecure XML parsing. The affected version is 0.3.63. The vulnerability arises from the use of etree.iterparse() without disabling external entity references, which can lead to sensitive information disclosure. An attacker could exploit this by crafting a malicious XML payload that references local files, potentially exposing sensitive data such as /etc/passwd.
References
security@huntr.devhttps://huntr.com/bounties/a6b521cf-258c-41c0-9edb-d8ef976abb2a
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "langchain-ai/langchain",
          "vendor": "langchain-ai",
          "versions": [
            {
              "lessThanOrEqual": "latest",
              "status": "affected",
              "version": "unspecified",
              "versionType": "custom"
            }
          ]
        }
      ],
      "source": "security@huntr.dev"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "The langchain-ai/langchain project, specifically the EverNoteLoader component, is vulnerable to XML External Entity (XXE) attacks due to insecure XML parsing. The affected version is 0.3.63. The vulnerability arises from the use of etree.iterparse() without disabling external entity references, which can lead to sensitive information disclosure. An attacker could exploit this by crafting a malicious XML payload that references local files, potentially exposing sensitive data such as /etc/passwd."
    },
    {
      "lang": "es",
      "value": "El proyecto langchain-ai/langchain, espec\u00edficamente el componente EverNoteLoader, es vulnerable a ataques de Entidad Externa XML (XXE) debido a un an\u00e1lisis XML inseguro. La versi\u00f3n afectada es 0.3.63. La vulnerabilidad surge del uso de etree.iterparse() sin deshabilitar las referencias a entidades externas, lo que puede llevar a la revelaci\u00f3n de informaci\u00f3n sensible. Un atacante podr\u00eda explotar esto creando una carga \u00fatil XML maliciosa que haga referencia a archivos locales, exponiendo potencialmente datos sensibles como /etc/p4ssd."
    }
  ],
  "id": "CVE-2025-6984",
  "lastModified": "2026-10-19T17:10:00.173",
  "metrics": {
    "cvssMetricV30": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 7.5,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
          "version": "3.0"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 3.6,
        "source": "security@huntr.dev",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2025-6984",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2025-09-04T20:07:23.933476Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2025-09-04T10:42:33.990",
  "references": [
    {
      "source": "security@huntr.dev",
      "url": "https://huntr.com/bounties/a6b521cf-258c-41c0-9edb-d8ef976abb2a"
    }
  ],
  "sourceIdentifier": "security@huntr.dev",
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-200"
        }
      ],
      "source": "security@huntr.dev",
      "type": "Secondary"
    }
  ]
}



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