CVE-2026-104948

The record

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 packages

Related vulnerabilities

• CVE-2026-55147 LORIS (Longitudinal Online Research and Imaging System) is a self-hosted web application… CWE-862
• CVE-2026-55146 LORIS (Longitudinal Online Research and Imaging System) is a self-hosted web application… CWE-862
• CVE-2026-62967 ZTNET is a ZeroTier web UI for private controllers with multiuser and organization… CWE-862
• CVE-2026-62989 Shopper is a Headless e-commerce Admin Panel. CWE-862
• CVE-2026-78403 Stack-based buffer overflow and missing authorization vulnerability in Thales Sentinel… CWE-862
• CVE-2026-62301 MyTube is a self-hosted downloader and player for several video websites. CWE-862
• CVE-2026-119337 RAGFlow is an open-source RAG (Retrieval-Augmented Generation) engine. CWE-862
• CVE-2026-116245 libpq looks a connection service up in the service file of the operating-system account… CWE-862