EnterpriseDB WarehousePG up to 7.5.x adminpack postgresql.auto.conf authorization

Summaryinfo

A vulnerability classified as critical was found in EnterpriseDB WarehousePG up to 7.5.x. Affected by this issue is the function pg_file_write/pg_file_rename/pg_file_unlink/pg_logdir_ls of the file postgresql.auto.conf of the component adminpack. Executing a manipulation can lead to authorization. This vulnerability is tracked as CVE-2026-96538. The attack can be launched remotely. No exploit exists. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in EnterpriseDB WarehousePG up to 7.5.x. It has been declared as critical. This vulnerability affects the function pg_file_write/pg_file_rename/pg_file_unlink/pg_logdir_ls of the file postgresql.auto.conf of the component adminpack. The manipulation 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. CVE summarizes:

WarehousePG (WHPG) 7.x before 7.6.0-WHPG is affected by a missing authorization vulnerability (CWE-862) in the built-in server-side file functions pg_file_write(text,text,bool), pg_file_rename(text,text,text), pg_file_unlink(text), and pg_logdir_ls(). These functions are executable by any authenticated database role with no GRANT required, because the REVOKE that contrib/adminpack applies to the equivalent functions was never carried over to WHPG core when their catalog entries were repointed to the ungated adminpack-derived implementations as part of Greenplum's merge to a PostgreSQL 12 base. A non-superuser can use pg_file_write, pg_file_rename, and pg_file_unlink to create, overwrite (append), rename, and delete files under the data and log directories, and can use pg_logdir_ls() to enumerate log file names. Because postgresql.auto.conf resides in the data directory, a non-superuser can append configuration directives such as shared_preload_libraries or archive_command to it, resulting in arbitrary code execution as the postgres operating system user on the next server restart or configuration reload. WarehousePG 6.x is not affected, as the equivalent functions there enforce a superuser check internally.

The advisory is available at github.com. This vulnerability was named CVE-2026-96538 since 09/23/2026. The exploitation appears to be easy. The attack can be initiated remotely. Technical details are known, but there is no available exploit.

Upgrading to version 7.6.0-WHPG eliminates this vulnerability.

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Vendor

• EnterpriseDB

Name

• WarehousePG

Version

• 7.0
• 7.1
• 7.2
• 7.3
• 7.4
• 7.5

CPE 2.3info

• 🔒
• 🔒
• 🔒

CPE 2.2info

• 🔒
• 🔒
• 🔒

CVSSv4info

CVSSv3info

CVSSv2info

Exploitinginfo

Threat Intelligenceinfo

Countermeasuresinfo

Timelineinfo

Sourcesinfo

Entryinfo

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Discussion