CVE-2026-44840

{
  "id": "CVE-2026-44840",
  "sourceIdentifier": "[email protected]",
  "published": "2026-07-08T14:16:59.493",
  "lastModified": "2026-10-25T20:10:00.147",
  "vulnStatus": "Deferred",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Dgraph is an open source distributed GraphQL database. Prior to version 25.3.4, the `checkUserPassword` GraphQL query in Dgraph is vulnerable to DQL (Dgraph Query Language) injection. User-supplied password values are interpolated directly into a DQL `checkpwd()` query via `fmt.Sprintf` without any escaping or parameterization. An attacker can inject a password containing a double-quote character to break out of the DQL string literal and append arbitrary DQL query blocks. Version 25.3.4 patches the issue."
    },
    {
      "lang": "es",
      "value": "Dgraph es una base de datos GraphQL distribuida de código abierto. Antes de la versión 25.3.4, la consulta GraphQL ’checkUserPassword’ en Dgraph es vulnerable a la inyección de DQL (Dgraph Query Language). Los valores de contraseña proporcionados por el usuario se interpolan directamente en una consulta DQL ’checkpwd()’ a través de ’fmt.Sprintf’ sin ningún escape o parametrización. Un atacante puede inyectar una contraseña que contenga un carácter de comilla doble para salir del literal de cadena DQL y adjuntar bloques de consulta DQL arbitrarios. La versión 25.3.4 corrige el problema."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
        {
          "vendor": "dgraph-io",
          "product": "dgraph",
          "versions": [
            {
              "version": "< 25.3.4",
              "status": "affected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "[email protected]",
        "type": "Secondary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
          "baseScore": 7.5,
          "baseSeverity": "HIGH",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "NONE",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "NONE",
          "availabilityImpact": "NONE"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 3.6
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "timestamp": "2026-07-09T13:28:28.118081Z",
          "id": "CVE-2026-44840",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "version": "2.0.3"
        }
      }
    ]
  },
  "weaknesses": [
    {
      "source": "[email protected]",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-943"
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://github.com/dgraph-io/dgraph/commit/cee702c93f141eeb0c96a81f70830ec9e459efac",
      "source": "[email protected]"
    },
    {
      "url": "https://github.com/dgraph-io/dgraph/releases/tag/v25.3.4",
      "source": "[email protected]"
    },
    {
      "url": "https://github.com/dgraph-io/dgraph/security/advisories/GHSA-q2m9-6jp9-c6mc",
      "source": "[email protected]"
    },
    {
      "url": "https://github.com/dgraph-io/dgraph/security/advisories/GHSA-q2m9-6jp9-c6mc",
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"
    }
  ]
}