Covert timing channel in comparison of MD5-hashed password in PostgreSQL authentication allows an attacker to recover user credentials sufficient to authenticate. This does not affect scram-sha-256 passwords, the default in all supported releases. However, current databases may have MD5-hashed passwords originating in upgrades from PostgreSQL 13 or earlier. Versions before PostgreSQL 18.4, 17.10, 16.14, 15.18, and 14.23 are affected.
{
"sources": [
{
"modified": "2026-05-18T15:03:55.670Z",
"database_specific": {
"status": "Analyzed"
},
"html_url": "https://nvd.nist.gov/vuln/detail/CVE-2026-6478",
"published": "2026-05-14T14:16:25.463Z",
"imported": "2026-06-08T13:34:09.866Z",
"url": "https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2026-6478",
"id": "CVE-2026-6478"
}
],
"license": "CC-BY-4.0"
}