WarehousePG (WHPG) 6.27.1 through 6.27.6 and 7.2.1 through 7.6.0 are affected by a missing authorization vulnerability (CWE-862) in the built-in cluster expansion functions gp_expand_lock_catalog() and gp_expand_bump_version(). Any authenticated database role can run them, and neither checks privileges. A low-privileged user can call gp_expand_lock_catalog() inside an open transaction to block all catalog changes across the cluster for every user, superusers included, until that transaction ends, which in practice requires a superuser to terminate the session. Blocked changes include DDL, temporary table creation, GRANT and CREATE ROLE. The same user can call gp_expand_bump_version() repeatedly. Each call disconnects sessions that hold temporary tables, with a FATAL error on their next catalog change, and makes every other session rebuild its segment connections.
History

Fri, 30 Oct 2026 19:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Thu, 22 Oct 2026 01:45:00 +0000

Type Values Removed Values Added
Title WarehousePG Cluster Expansion Functions Lack Authorization Checks

Wed, 21 Oct 2026 23:45:00 +0000

Type Values Removed Values Added
First Time appeared Enterprisedb
Enterprisedb warehousepg
Vendors & Products Enterprisedb
Enterprisedb warehousepg

Wed, 21 Oct 2026 23:00:00 +0000

Type Values Removed Values Added
Title Missing Authorization in WarehousePG Cluster Expansion Functions

Wed, 21 Oct 2026 19:30:00 +0000

Type Values Removed Values Added
Title Missing Authorization in WarehousePG Cluster Expansion Functions

Wed, 21 Oct 2026 14:00:00 +0000

Type Values Removed Values Added
Description WarehousePG (WHPG) 6.27.1 through 6.27.6 and 7.2.1 through 7.6.0 are affected by a missing authorization vulnerability (CWE-862) in the built-in cluster expansion functions gp_expand_lock_catalog() and gp_expand_bump_version(). Any authenticated database role can run them, and neither checks privileges. A low-privileged user can call gp_expand_lock_catalog() inside an open transaction to block all catalog changes across the cluster for every user, superusers included, until that transaction ends, which in practice requires a superuser to terminate the session. Blocked changes include DDL, temporary table creation, GRANT and CREATE ROLE. The same user can call gp_expand_bump_version() repeatedly. Each call disconnects sessions that hold temporary tables, with a FATAL error on their next catalog change, and makes every other session rebuild its segment connections.
Weaknesses CWE-862
References
Metrics cvssV4_0

{'score': 7.1, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N'}


cve-icon MITRE

Status: PUBLISHED

Assigner: EDB

Published: 2026-10-21T13:53:54.574Z

Updated: 2026-10-30T18:02:53.219Z

Reserved: 2026-10-02T17:51:49.010Z

Link: CVE-2026-104948

cve-icon Vulnrichment

Updated: 2026-10-30T18:02:45.704Z

cve-icon NVD

Status : Deferred

Published: 2026-10-21T14:17:09.083

Modified: 2026-10-30T19:17:58.450

Link: CVE-2026-104948

cve-icon Redhat

No data.