CVE-2026-2006 HIGH

CVE-2026-2006: PostgreSQL missing validation of multibyte character length executes arbitrary code

Vendor N/A
Product PostgreSQL
Weakness CWE-129
Published February 12, 2026
Last update June 30, 2026
View on NVD All CVEs

CVSS base score

8.8/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality High
Integrity High

CVSS vector

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

What the vulnerability does

01Description

Missing validation of multibyte character length in PostgreSQL text manipulation allows a database user to issue crafted queries that achieve a buffer overrun. That suffices to execute arbitrary code as the operating system user running the database. Versions before PostgreSQL 18.2, 17.8, 16.12, 15.16, and 14.21 are affected.

Key dates

02Disclosure timeline

February 12, 2026 CVE published
June 30, 2026 Record updated