While typical abbreviations are only a few bytes long, a user-supplied
time_zone setting could specify a much longer abbreviation, enough to
overflow to_char's allocation of 12 bytes per format character. If so,
throw an error in the same style as commit 9241c84cb (CVE-2015-0241).
Reported-by: Hcamael <baiyjrh@gmail.com>
Reported-by: Amjad Shahzad <amjadshahzad2000@gmail.com>
Reported-by: Tan Zhen of AntAISecurityLab <TanZhen.AntAI@outlook.com>
Reported-by: Tomer Fichman <tomer@irregular.com>
Reported-by: Zheng Yu <zheng@depthfirst.com>
Reported-by: Amy Burnett (OpenAI Codex Security)
Reported-by: Rick de Jager <rick@v12.sh>
Reported-by: Heewon Song <asteria121@78researchlab.com>
Reported-by: Sylvie Mayer <smayer@cloudflare.com>
Reported-by: Aleksander Alekseev <aleksander@tigerdata.com>
Reported-by: Hillai Ben Sasson <hillai.bensasson@wiz.io>
Author: Tom Lane <tgl@sss.pgh.pa.us>
Backpatch-through: 14
Security: CVE-2026-14669
PostgreSQL Database Management System
This directory contains the source code distribution of the PostgreSQL database management system.
PostgreSQL is an advanced object-relational database management system that supports an extended subset of the SQL standard, including transactions, foreign keys, subqueries, triggers, user-defined types and functions. This distribution also contains C language bindings.
Copyright and license information can be found in the file COPYRIGHT.
General documentation about this version of PostgreSQL can be found at https://www.postgresql.org/docs/17/. In particular, information about building PostgreSQL from the source code can be found at https://www.postgresql.org/docs/17/installation.html.
The latest version of this software, and related software, may be obtained at https://www.postgresql.org/download/. For more information look at our web site located at https://www.postgresql.org/.