Medium severity5.4NVD Advisory· Published Nov 12, 2026
CVE-2026-116312
CVE-2026-116312
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.
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Affected products
1- Range: <18.7, <17.12, <16.16, <15.20
Patches
Vulnerability mechanics
References
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