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.
History

Thu, 13 Aug 2026 16:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Thu, 13 Aug 2026 15:30:00 +0000

Type Values Removed Values Added
First Time appeared Postgresql
Postgresql postgresql
Vendors & Products Postgresql
Postgresql postgresql

Thu, 13 Aug 2026 13:15:00 +0000

Type Values Removed Values Added
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.
Title PostgreSQL to_char heap buffer overflow executes arbitrary code
Weaknesses CWE-122
References
Metrics cvssV3_1

{'score': 8.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'}


cve-icon MITRE

Status: PUBLISHED

Assigner: PostgreSQL

Published:

Updated: 2026-08-13T15:35:26.890Z

Reserved: 2026-07-03T20:28:11.993Z

Link: CVE-2026-14669

cve-icon Vulnrichment

Updated: 2026-08-13T15:35:21.720Z

cve-icon NVD

Status : Received

Published: 2026-08-13T13:17:44.280

Modified: 2026-08-13T16:17:56.107

Link: CVE-2026-14669

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-08-13T15:15:12Z