CVE-2026-116306
PostgreSQL composite-type change during field assignment executes arbitrary code
Description
Type confusion in PostgreSQL composite-value field assignment allows an object creator to execute arbitrary code as the operating system user running the database, via changing a composite type between deforming and reforming a value. Versions before PostgreSQL 18.7, 17.12, 16.16, 15.20, and 14.25 are affected.
INFO
Published Date :
Nov. 12, 2026, 2:15 p.m.
Last Modified :
Nov. 12, 2026, 2:15 p.m.
Remotely Exploit :
Yes !
Source :
PostgreSQL
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | HIGH | f86ef6dc-4d3a-42ad-8f28-e6d5547a5007 | ||||
| CVSS 3.1 | HIGH | MITRE-CVE |
Solution
- Update PostgreSQL to version 18.7 or later.
- Update PostgreSQL to version 17.12 or later.
- Update PostgreSQL to version 16.16 or later.
- Update PostgreSQL to version 15.20 or later.
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CVE-2026-116306 vulnerability anywhere in the article.