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CVE-2026-14678

Estado: ModificadaMedia (4.3)—

Buffer over-read in PostgreSQL pg_trgm index picksplit function reads past end of a heap buffer. This might allow a table maintainer to infer limited memory values, via the lossy signal of index split choices. Versions before PostgreSQL 18.6, 17.11, 16.15, 15.19, and 14.24 are affected.

CVSS

Probabilidad de explotación (EPSS)

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).

Tecnologías afectadas (1)

Postgresql — Postgresql

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2026-14678",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-14678",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2026-08-13T14:39:23.325065Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "f86ef6dc-4d3a-42ad-8f28-e6d5547a5007",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 4.3,
          "attackVector": "NETWORK",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "LOW"
        },
        "impactScore": 1.4,
        "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": "2026-08-13T13:17:45.150",
  "references": [
    {
      "url": "https://www.postgresql.org/support/security/CVE-2026-14678/",
      "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-126"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Buffer over-read in PostgreSQL pg_trgm index picksplit function reads past end of a heap buffer.  This might allow a table maintainer to infer limited memory values, via the lossy signal of index split choices.  Versions before PostgreSQL 18.6, 17.11, 16.15, 15.19, and 14.24 are affected."
    }
  ],
  "lastModified": "2026-08-29T23:17:16.307",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
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              "versionEndExcluding": "14.24",
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  "sourceIdentifier": "f86ef6dc-4d3a-42ad-8f28-e6d5547a5007"
}