CVE-2026-14668 HIGH

CVE-2026-14668: PostgreSQL ctid type confusion in selectivity estimator discloses derivative of arbitrary read

Vendor N/A
Product PostgreSQL
Weakness CWE-843
Published August 13, 2026
Last update August 13, 2026
View on NVD All CVEs

CVSS base score

8.1/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality High
Integrity None

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H

What the vulnerability does

01Description

Type confusion regarding input of PostgreSQL ctid data type selectivity estimator allows an object creator to view a calculation derived from the value of an arbitrary 4-byte span of memory, via a chosen non-ctid input. While the calculation loses precision, substantial memory value recovery appears possible. Versions before PostgreSQL 18.5, 17.11, 16.15, 15.19, and 14.24 are affected.

Key dates

02Disclosure timeline

August 13, 2026 CVE published
August 13, 2026 Record updated