PostgreSQL intarray missing validation of type of input to selectivity estimator executes arbitrary code_CVE-2026-2004

{
    "lastseen": "",
    "description": "Missing validation of type of input in PostgreSQL intarray extension selectivity estimator function allows an object creator to execute arbitrary code as the operating system user running the database.  Versions before PostgreSQL 18.2, 17.8, 16.12, 15.16, and 14.21 are affected.",
    "published": "2026-02-12T13:00:08.857Z",
    "modified": "2026-02-12T14:32:53.686Z",
    "type": "cve",
    "title": "PostgreSQL intarray missing validation of type of input to selectivity estimator executes arbitrary code",
    "source": "PostgreSQL",
    "references": "https://www.postgresql.org/support/security/CVE-2026-2004/",
    "id": "CVE-2026-2004",
    "bulletinFamily": "",
    "cwe": [
        "CWE-1287"
    ],
    "cvelist": null,
    "sourceData": "n/a PostgreSQL 18\nn/a PostgreSQL 17\nn/a PostgreSQL 16\nn/a PostgreSQL 15\nn/a PostgreSQL 0",
    "sourceHref": "",
    "cvss": {
        "score": 8.8,
        "severity": "HIGH",
        "vector": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
        "version": "3.1"
    },
    "cvss2": [],
    "cvss3": {
        "version": "",
        "vectorString": "",
        "baseScore": 0,
        "baseSeverity": "",
        "attackVector": "",
        "attackComplexity": "",
        "privilegesRequired": "",
        "userInteraction": "",
        "scope": "",
        "confidentialityImpact": "",
        "integrityImpact": "",
        "availabilityImpact": "",
        "cvssV3": {
            "version": "",
            "vectorString": "",
            "baseScore": 0,
            "baseSeverity": "",
            "attackVector": "",
            "attackComplexity": "",
            "privilegesRequired": "",
            "userInteraction": "",
            "scope": "",
            "confidentialityImpact": "",
            "integrityImpact": "",
            "availabilityImpact": ""
        }
    },
    "href": "",
    "category_name": "CVE",
    "post_link": "",
    "product": "PostgreSQL",
    "version": "18",
    "vendor": "n/a",
    "ai_description": "Arbitrary code execution in PostgreSQL intarray extension due to missing input validation",
    "ai_severity": "High",
    "ai_vendor": "PostgreSQL Global Development Group",
    "ai_product": "PostgreSQL",
    "ai_version": "18.2, 17.8, 16.12, 15.16, 14.21",
    "ai_score": 8.8
}