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.
{
"sources": [
{
"id": "CVE-2026-6473",
"imported": "2026-06-08T13:34:09.445Z",
"url": "https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2026-6473",
"published": "2026-05-14T14:16:24.883Z",
"html_url": "https://nvd.nist.gov/vuln/detail/CVE-2026-6473",
"modified": "2026-05-18T14:59:59.747Z",
"database_specific": {
"status": "Analyzed"
}
}
],
"license": "CC-BY-4.0"
}