CVE-2026-14669

High

Open

TLP:CLEAR

PostgreSQL to_char heap buffer overflow executes arbitrary code

NVD CVE.org

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Description

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.

Details

CVSS Score: 8.8
CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Confidence: 90%
Published: Aug 13, 2026
Last Modified: Aug 13, 2026

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