CVE-2026-62349

{
  "id": "CVE-2026-62349",
  "sourceIdentifier": "[email protected]",
  "published": "2026-07-15T19:18:37.347",
  "lastModified": "2026-10-24T21:10:00.130",
  "vulnStatus": "Deferred",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "TDengine is an open source, time-series database optimized for Internet of Things devices. In 3.4.1.6 and earlier, source/libs/parser/src/parUtil.c trimString() checks space for only one byte before processing SQL string escape sequences \\%, \\_, or \\x, allowing a one-byte out-of-bounds write to the stack buffer tmpTokenBuf that can cause denial of service and potentially remote code execution. This issue is fixed in version 3.4.1.14."
    },
    {
      "lang": "es",
      "value": "TDengine es una base de datos de series temporales de código abierto optimizada para dispositivos de internet de las cosas. En 3.4.1.6 y anteriores, source/libs/parser/src/parUtil.c trimString() verifica espacio para solo un byte antes de procesar las secuencias de escape de cadena SQL \\%, \\_, o \\x, permitiendo una escritura fuera de límites de un byte en el búfer de pila tmpTokenBuf que puede causar denegación de servicio y potencialmente ejecución remota de código. Este problema está solucionado en la versión 3.4.1.14."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
        {
          "vendor": "taosdata",
          "product": "TDengine",
          "versions": [
            {
              "version": "< 3.4.1.14",
              "status": "affected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "[email protected]",
        "type": "Secondary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:H",
          "baseScore": 8.3,
          "baseSeverity": "HIGH",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "LOW",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "LOW",
          "availabilityImpact": "HIGH"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 5.5
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "timestamp": "2026-07-15T19:30:40.997887Z",
          "id": "CVE-2026-62349",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "version": "2.0.3"
        }
      }
    ]
  },
  "weaknesses": [
    {
      "source": "[email protected]",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-121"
        },
        {
          "lang": "en",
          "value": "CWE-787"
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://github.com/taosdata/TDengine/security/advisories/GHSA-4v5h-fxjw-vrmq",
      "source": "[email protected]"
    },
    {
      "url": "https://github.com/taosdata/TDengine/security/advisories/GHSA-4v5h-fxjw-vrmq",
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"
    }
  ]
}