CVE-2026-14739: DBI: DBI: Heap overflow when preparsing SQL statements with excessive placeholders

Severity: Critical

CVSS Score: 9.8

DBI versions before 1.650 for Perl have a heap overflow when preparsing SQL statements with an extreme number of placeholders. The fix for CVE-2026-10879 did not allocate enough memory to handle approximately 1.2-million placeholders. DBI version 1.650 sets a hard limit of 99,999 placeholders.