GHSA-8RQW-W7XQ-566R

Vulnerability from github – Published: 2026-05-14 15:31 – Updated: 2026-06-30 15:30
VLAI
Details

Integer wraparound in multiple PostgreSQL server features allows an unprivileged database user to cause the server to undersize an allocation and write out-of-bounds. This may execute arbitrary code as the operating system user running the database. In applications that pass gigabyte-scale user inputs to the relevant database functions, the application input provider may achieve a segmentation fault. Versions before PostgreSQL 18.4, 17.10, 16.14, 15.18, and 14.23 are affected.

Severity
8.8 (High)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
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{
  "affected": [],
  "aliases": [
    "CVE-2026-6473"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-190"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-05-14T14:16:24Z",
    "severity": "HIGH"
  },
  "details": "Integer wraparound in multiple PostgreSQL server features allows an unprivileged database user to cause the server to undersize an allocation and write out-of-bounds.  This may execute arbitrary code as the operating system user running the database.  In applications that pass gigabyte-scale user inputs to the relevant database functions, the application input provider may achieve a segmentation fault.  Versions before PostgreSQL 18.4, 17.10, 16.14, 15.18, and 14.23 are affected.",
  "id": "GHSA-8rqw-w7xq-566r",
  "modified": "2026-06-30T15:30:32Z",
  "published": "2026-05-14T15:31:58Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-6473"
    },
    {
      "type": "WEB",
      "url": "https://www.postgresql.org/support/security/CVE-2026-6473"
    },
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      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-6473.json"
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      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2477448"
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  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}


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