An information leak was discovered in postgresql in versions before 13.2, before 12.6 and before 11.11. A user having UPDATE permission but not SELECT permission to a particular column could craft queries which, under some circumstances, might disclose values from that column in error messages. An attacker could use this flaw to obtain information stored in a column they are allowed to write but not read.
{
"license": "CC-BY-4.0",
"sources": [
{
"html_url": "https://nvd.nist.gov/vuln/detail/CVE-2021-3393",
"modified": "2024-11-21T06:21:24.200Z",
"published": "2021-04-01T14:15:13.657Z",
"url": "https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2021-3393",
"id": "CVE-2021-3393",
"imported": "2026-04-03T13:13:09.843Z"
}
]
}