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 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.

CVSS

No CVSS.

References

Link	Resource
https://www.enterprisedb.com/docs/security/advisories/cve2026104948/

Configurations

No configuration.

History

21 Oct 2026, 14:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-10-21 14:17

Updated : 2026-10-30 19:17

NVD link : CVE-2026-104948

Mitre link : CVE-2026-104948

CVE.ORG link : CVE-2026-104948

JSON object : View

Products Affected

No product.

CWE

CWE-862

Missing Authorization

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