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CVE-2026-16239ImportantRevised 23 Aug

PostgreSQL type confusion in cursor CLOSE + DECLARE executes arbitrary code

MSRC advisory NVD CVE.org

Assessment

Severity
Important
CVSS base score
8.8CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Impact
Not stated
EPSS, next 30 days
Not scored yet
Public exploit code
No Nuclei template lists it
Exploitability
Not assessed
Publicly disclosed
No
Customer action
Required: apply the update
Component
Mariner
Weakness
CWE-843: Access of Resource Using Incompatible Type ('Type Confusion')
Issued by
PostgreSQL
Published
14 Aug 2026 · August 2026
Last revised
23 Aug 2026Information published.

Updates that fix it

0 KBs

No KB listed

MSRC lists no downloadable update, which usually means a service-side fix or a release-notes update. Check the MSRC advisory.

Affected products

1 affected product
  • azl3 postgresql 16.14-1 on Azure Linux 3.0

What changed

First observed 14 Oct 2026
  1. 14 Oct 2026 Source coverage: msrc-cvrfIncomplete → Current

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ChangeIntel

An IT change radar: releases, security, known issues, retirements, documentation changes, and service status from public sources. Every item links to supporting evidence; dates and statuses can change after they are read.

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