Bug 2477436 (CVE-2026-6472)

Summary: CVE-2026-6472 postgresql: PostgreSQL CREATE TYPE does not check multirange schema CREATE privilege
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security <prodsec-ir-bot>
Status: NEW --- QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedCC: dschmidt, erezende, jlanda, kshier, rhel-process-autobot, simaishi, smcdonal, stcannon, teagle, watson-tool-maintainers, yguenane
Target Milestone: ---Keywords: Security
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Hardware: All   
OS: Linux   
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Doc Text:
A flaw was found in PostgreSQL CREATE TYPE handling for multirange types. The database failed to properly verify schema CREATE privileges during multirange type creation. An authenticated database user could exploit this issue to hijack queries that rely on search_path resolution for user-defined or extension-defined types, potentially causing execution of arbitrary SQL functions within the affected database context.
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On: 2489303, 2489304, 2489305, 2489306    
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Description OSIDB Bzimport 2026-05-14 14:01:33 UTC
Missing authorization in PostgreSQL CREATE TYPE allows an object creator to hijack other queries that use search_path to find user-defined types, including extension-defined types.  That is to say, the victim will execute arbitrary SQL functions of the attacker's choice.  Versions before PostgreSQL 18.4, 17.10, 16.14, 15.18, and 14.23 are affected.