CVE-2026-116312
MEDIUM
NVD
CVSS Score
5.4
Severity
MEDIUM
Published
Nov 12, 2026
Vendor
unknown
Description
Inconsistent transition-capture state in PostgreSQL MERGE allows a table data modifier to make an AFTER trigger process the wrong new row, via a partitioned table MERGE that performs an INSERT before an UPDATE. Within major versions 15-18, minor versions before PostgreSQL 18.7, 17.12, 16.16, and 15.20 are affected. Versions before PostgreSQL 15 are unaffected.