CVE-2026-104948 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 buil
- Exploited in the wild
- Not known
- Fix
- None listed
What is CVE-2026-104948?
CVE-2026-104948 is a high-severity vulnerability in EnterpriseDB WarehousePG, published on 21 Oct 2026.
Official 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.
Weakness: CWE-862
Which versions are affected by CVE-2026-104948?
How do I fix CVE-2026-104948?
No fix has been published for CVE-2026-104948 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-104948 being exploited?
There is no known exploitation of CVE-2026-104948 in the wild and no public exploit code.
Sources
Also known as GHSA-7m66-9h4j-25fj.