CVE-2026-14669

Heap buffer overflow in PostgreSQL to_char(timestamptz) allows the party choosing the timezone to execute arbitrary code as the operating system user running the database, via a long POSIX timezone abbreviation. Versions before PostgreSQL 18.5, 17.11, 16.15, 15.19, and 14.24 are affected.

Affected products

Postgresql

Postgresql

< 14.24, 15.19, 16.15, 17.11, 18.5

CVSS 3.1

8.8 HIGH

EPSS

0.6% (47th percentile)

Weakness

CWE-122

NVD status

Analyzed

Published

2026-08-13