{"id":"CVE-2026-104948","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-104948","generatedAt":"2026-10-28T01:00:52.030Z","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().","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.","published":"2026-10-21T14:17:09.000Z","lastModified":"2026-10-22T16:58:52.000Z","status":"Deferred","sourceIdentifier":"20be33e2-bf35-4d13-8fad-18bd2f3e3659","cvss":{"version":"4.0","score":7.1,"severity":"HIGH","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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M"},"cwe":["CWE-862"],"affected":[],"epss":{"score":0.00216,"percentile":0.11945,"date":"2026-10-26","history":[{"date":"2026-10-22","score":0.00216,"percentile":0.11429}]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (0.22%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[{"kind":"new","label":"New CVE","at":"2026-10-21T14:17:09.000Z","detail":{"score":"7.1","severity":"HIGH","publishedAt":"2026-10-21T14:17:09.083Z"},"summary":"New CVE, high severity (CVSS 7.1)."}],"references":[{"url":"https://www.enterprisedb.com/docs/security/advisories/cve2026104948/","source":"20be33e2-bf35-4d13-8fad-18bd2f3e3659"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-104948","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}