---
id: CVE-2026-104948
title: >-
  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()
summary: >-
  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
  authe…
severity: high
cvss: 7.1
cvssVector: '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'
cvssSource: cna
cwe:
  - CWE-862
vendor: EnterpriseDB
product: WarehousePG
affected:
  - WarehousePG >= 6.27.1 < 6.27.7
  - WarehousePG >= 7.2.1 < 7.6.1
published: '2026-10-21'
updated: '2026-10-21'
sourceUpdated: '2026-10-21T13:53:54.574Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-104948'
references:
  - url: 'https://www.enterprisedb.com/docs/security/advisories/cve2026104948/'
tags:
  - cve.org
ingestedAt: '2026-10-21T15:02:42.110Z'
---

## Overview

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.

## Affected

- `WarehousePG >= 6.27.1 < 6.27.7`
- `WarehousePG >= 7.2.1 < 7.6.1`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.