CVE-2026-18024
MEDIUM
NVD
CVSS Score
4.3
Severity
MEDIUM
Published
Aug 13, 2026
Vendor
unknown
Description
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 18.5, 17.11, 16.15, 15.19, and 14.24 are affected.