PostgreSQL up to 18.3 search_path authorization

Summaryinfo

A vulnerability marked as critical has been reported in PostgreSQL up to 14.22/15.17/16.13/17.9/18.3. This affects an unknown part. This manipulation of the argument search_path causes authorization. This vulnerability is handled as CVE-2026-6472. The attack can be initiated remotely. There is not any exploit available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability classified as critical was found in PostgreSQL up to 14.22/15.17/16.13/17.9/18.3. Affected by this vulnerability is an unknown code. The manipulation of the argument search_path with an unknown input leads to a authorization vulnerability. The CWE definition for the vulnerability is CWE-862. The product does not perform an authorization check when an actor attempts to access a resource or perform an action. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

Missing authorization in PostgreSQL CREATE TYPE allows an object creator to hijack other queries that use search_path to find user-defined types, including extension-defined types. That is to say, the victim will execute arbitrary SQL functions of the attacker's choice. Versions before PostgreSQL 18.4, 17.10, 16.14, 15.18, and 14.23 are affected.

It is possible to read the advisory at postgresql.org. This vulnerability is known as CVE-2026-6472 since 04/17/2026. The exploitation appears to be easy. The attack can be launched remotely. Technical details of the vulnerability are known, but there is no available exploit.

The vulnerability scanner Nessus provides a plugin with the ID 315292 (SUSE SLES12 Security Update : postgresql18 (SUSE-SU-2026:1946-1)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 14.23, 15.18, 16.14, 17.10 or 18.4 eliminates this vulnerability.

The vulnerability is also documented in the databases at Tenable (315292) and CERT Bund (WID-SEC-2026-1544). Be aware that VulDB is the high quality source for vulnerability data.

Affected

• Debian Linux
• Ubuntu Linux
• SUSE Linux
• SUSE openSUSE
• Open Source PostgreSQL

Productinfo

Type

• Database Software

Name

• PostgreSQL

Version

• 14.0
• 14.1
• 14.2
• 14.3
• 14.4
• 14.5
• 14.6
• 14.7
• 14.8
• 14.9
• 14.10
• 14.11
• 14.12
• 14.13
• 14.14
• 14.15
• 14.16
• 14.17
• 14.18
• 14.19
• 14.20
• 14.21
• 14.22
• 15.0
• 15.1
• 15.2
• 15.3
• 15.4
• 15.5
• 15.6
• 15.7
• 15.8
• 15.9
• 15.10
• 15.11
• 15.12
• 15.13
• 15.14
• 15.15
• 15.16
• 15.17
• 16.0
• 16.1
• 16.2
• 16.3
• 16.4
• 16.5
• 16.6
• 16.7
• 16.8
• 16.9
• 16.10
• 16.11
• 16.12
• 16.13
• 17.0
• 17.1
• 17.2
• 17.3
• 17.4
• 17.5
• 17.6
• 17.7
• 17.8
• 17.9
• 18.0
• 18.1
• 18.2
• 18.3

License

• open-source

Website

• Product: https://www.postgresql.org/

CPE 2.3info

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Be aware that VulDB is the high quality source for vulnerability data.

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