Buffer over-read in PostgreSQL ascii() SQL function allows a user to disclose up to 3 bytes after the end of a specific allocation, via a crafted text value. This is the same class of defect that CVE-2026-2006 fixed, though this instance has less impact. Versions before PostgreSQL 18.6, 17.11, 16.15, 15.19, and 14.24 are affected.
{
"cpes": [
"cpe:2.3:a:postgresql:postgresql:*:*:*:*:*:*:*:*"
],
"severity": "Medium"
}