Bug 2572531 (CVE-2026-120141)

Summary: CVE-2026-120141 postgresql: postgresql: Arbitrary code execution via type confusion in materialized set-returning functions
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
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Priority: high    
Version: unspecifiedKeywords: Security
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OS: Linux   
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A flaw was found in PostgreSQL. A type confusion vulnerability in materialized set-returning functions allows an authenticated database user to execute arbitrary code on the server with the privileges of the operating system user running the database. By returning rows with differing dynamic record types (such as through the json_populate_recordset() function), the database misinterprets data types in memory, leading to arbitrary code execution.
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Description OSIDB Bzimport 2026-11-12 14:31:35 UTC 
Type confusion in PostgreSQL materialized set-returning functions allows a database user to execute arbitrary code as the operating system user running the database, via returning rows having different dynamic RECORD return types.  json_populate_recordset() is one affected function.  Versions before PostgreSQL 18.7, 17.12, 16.16, 15.20, and 14.25 are affected.