CVE-2026-2006

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.

CVSS v3 8.8 HIGH

8.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.8 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://www.postgresql.org/support/security/CVE-2026-2006/	Vendor Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:postgresql:postgresql::::::::
	cpe:2.3:a:postgresql:postgresql::::::::
	cpe:2.3:a:postgresql:postgresql::::::::
	cpe:2.3:a:postgresql:postgresql::::::::
	cpe:2.3:a:postgresql:postgresql::::::::

History

20 Feb 2026, 19:54

Type	Values Removed	Values Added
CPE		cpe:2.3:a:postgresql:postgresql::::::::
References	~~() https://www.postgresql.org/support/security/CVE-2026-2006/ -~~	() https://www.postgresql.org/support/security/CVE-2026-2006/ - Vendor Advisory
First Time		Postgresql Postgresql postgresql

12 Feb 2026, 14:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-02-12 14:16

Updated : 2026-02-20 19:54

NVD link : CVE-2026-2006

Mitre link : CVE-2026-2006

CVE.ORG link : CVE-2026-2006

JSON object : View

Products Affected

postgresql

postgresql

CWE

CWE-129

Improper Validation of Array Index

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