CVE-2026-116312
Public on 2026-11-12
Modified on 2026-11-14
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.
CVSS v3 Base Score
See breakdown
Affected Packages
| Platform | Package | Release Date | Advisory | Status |
|---|---|---|---|---|
| Amazon Linux 2 - Postgresql14 Extra | libpq | Not Affected | ||
| Amazon Linux 2023 | libpq | Not Affected | ||
| Amazon Linux 2027 Preview | libpq | Not Affected | ||
| Amazon Linux 2 - Core | postgresql | Not Affected | ||
| Amazon Linux 2 - Postgresql14 Extra | postgresql | Not Affected | ||
| Amazon Linux 2023 | postgresql15 | Pending Fix | ||
| Amazon Linux 2023 | postgresql16 | Pending Fix | ||
| Amazon Linux 2027 Preview | postgresql16 | Pending Fix | ||
| Amazon Linux 2023 | postgresql17 | Pending Fix | ||
| Amazon Linux 2027 Preview | postgresql17 | Pending Fix | ||
| Amazon Linux 2023 | postgresql18 | Pending Fix | ||
| Amazon Linux 2027 Preview | postgresql18 | Pending Fix |
CVSS Scores
| Score Type | Score | Vector | |
|---|---|---|---|
| Amazon Linux | CVSSv3 | 5.4 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N |