Buffer over-read in PostgreSQL pg_trgm index picksplit function reads past end of a heap buffer. This might allow a table maintainer to infer limited memory values, via the lossy signal of index split choices. 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': 'partial'}, 'version': '2.0.3'}


Thu, 13 Aug 2026 16:15:00 +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 Buffer over-read in PostgreSQL pg_trgm index picksplit function reads past end of a heap buffer. This might allow a table maintainer to infer limited memory values, via the lossy signal of index split choices. Versions before PostgreSQL 18.5, 17.11, 16.15, 15.19, and 14.24 are affected.
Title PostgreSQL pg_trgm picksplit reads past end of buffer
Weaknesses CWE-126
References
Metrics cvssV3_1

{'score': 4.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N'}


cve-icon MITRE

Status: PUBLISHED

Assigner: PostgreSQL

Published:

Updated: 2026-08-13T15:36:52.887Z

Reserved: 2026-07-03T20:28:17.298Z

Link: CVE-2026-14678

cve-icon Vulnrichment

Updated: 2026-08-13T15:36:48.314Z

cve-icon NVD

Status : Received

Published: 2026-08-13T13:17:45.150

Modified: 2026-08-13T16:17:56.917

Link: CVE-2026-14678

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-08-13T16:00:10Z