CVE-2026-19385

Estado: ModificadaAlta (8.8)—

Heap buffer overflow in PostgreSQL pg_dump of long function transform lists allows an object creator to execute arbitrary code as the operating system user running pg_dump, via a crafted transform list. Versions before PostgreSQL 18.6, 17.11, 16.15, 15.19, and 14.24 are affected.

CVSS

Versión: 3.1
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Puntuación base: 8.8

Probabilidad de explotación (EPSS)

Probabilidad de explotación en los próximos 30 días: 0.43%
Percentil entre todas las CVEs puntuadas: 35
Fecha de la puntuación: 5/10/2026

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

🎯 Técnicas ATT&CK

Cómo se explota esta vulnerabilidad y qué consigue el atacante, en el lenguaje de MITRE ATT&CK.

ExplotaciónT1210 Exploitation of Remote Serviceslateral movement85 %
Impacto principalT1059 Command and Scripting Interpreterexecution90 %

Heap buffer overflow en pg_dump remoto (AV:N) con PR:L permite ejecución de código arbitrario (C:H/I:H/A:H) en el usuario del SO que ejecuta el servicio.

Inferido por nuestro agente de análisis a partir de la descripción oficial, el vector CVSS y la CWE, y comprobado por un supervisor. Puede contener errores.

🛡️ Mitigaciones ATT&CK que cubren estas técnicas

Privileged Account Management Disable or Remove Feature or Program Vulnerability Scanning Threat Intelligence Program Restrict Web-Based Content Network Segmentation

Tecnologías afectadas (1)

Postgresql — Postgresql

CWE

CWE-122

Referencias

https://www.postgresql.org/support/security/CVE-2026-19385/

JSON original (NVD)

Mostrar

{
  "id": "CVE-2026-19385",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-19385",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2026-08-13T00:00:00+00:00"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "f86ef6dc-4d3a-42ad-8f28-e6d5547a5007",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 8.8,
          "attackVector": "NETWORK",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.9,
        "exploitabilityScore": 2.8
      }
    ]
  },
  "affected": [
    {
      "source": "f86ef6dc-4d3a-42ad-8f28-e6d5547a5007",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "PostgreSQL",
          "versions": [
            {
              "status": "affected",
              "version": "18",
              "lessThan": "18.6",
              "versionType": "rpm"
            },
            {
              "status": "affected",
              "version": "17",
              "lessThan": "17.11",
              "versionType": "rpm"
            },
            {
              "status": "affected",
              "version": "16",
              "lessThan": "16.15",
              "versionType": "rpm"
            },
            {
              "status": "affected",
              "version": "15",
              "lessThan": "15.19",
              "versionType": "rpm"
            },
            {
              "status": "affected",
              "version": "0",
              "lessThan": "14.24",
              "versionType": "rpm"
            }
          ],
          "defaultStatus": "unaffected"
        }
      ]
    }
  ],
  "published": "2026-08-13T13:17:48.740",
  "references": [
    {
      "url": "https://www.postgresql.org/support/security/CVE-2026-19385/",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "f86ef6dc-4d3a-42ad-8f28-e6d5547a5007"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "f86ef6dc-4d3a-42ad-8f28-e6d5547a5007",
      "description": [
        {
          "lang": "en",
          "value": "CWE-122"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Heap buffer overflow in PostgreSQL pg_dump of long function transform lists allows an object creator to execute arbitrary code as the operating system user running pg_dump, via a crafted transform list.  Versions before PostgreSQL 18.6, 17.11, 16.15, 15.19, and 14.24 are affected."
    }
  ],
  "lastModified": "2026-08-29T23:17:21.280",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:postgresql:postgresql:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "6BEE5714-C2EF-48DC-8613-C3EAA149E12E",
              "versionEndExcluding": "14.24",
              "versionStartIncluding": "14.0"
            },
            {
              "criteria": "cpe:2.3:a:postgresql:postgresql:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "F433746A-733F-4ED0-9913-8AF69E0C8BF2",
              "versionEndExcluding": "15.19",
              "versionStartIncluding": "15.0"
            },
            {
              "criteria": "cpe:2.3:a:postgresql:postgresql:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "1996B91F-E0B2-4A78-8788-E17EA68D179C",
              "versionEndExcluding": "16.15",
              "versionStartIncluding": "16.0"
            },
            {
              "criteria": "cpe:2.3:a:postgresql:postgresql:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "3D04E642-71D7-4979-AA19-B9CCDEFD8C31",
              "versionEndExcluding": "17.11",
              "versionStartIncluding": "17.0"
            },
            {
              "criteria": "cpe:2.3:a:postgresql:postgresql:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "8494F67B-673A-4E1F-8F40-D24DCC1F8DA4",
              "versionEndExcluding": "18.5",
              "versionStartIncluding": "18.0"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "f86ef6dc-4d3a-42ad-8f28-e6d5547a5007"
}