Bug 2572555 (CVE-2026-120148)

Summary: CVE-2026-120148 postgresql: postgresql: Arbitrary code execution via type confusion in extended statistics
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
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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 the extended statistics component allows an authenticated database user with object creation permissions to execute arbitrary code as the operating system user running the database. By defining an extended statistics expression with an anonymous record type, an attacker can cause data types to be misinterpreted across database sessions, leading to memory corruption.
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Description OSIDB Bzimport 2026-11-12 14:33:10 UTC
Type confusion in PostgreSQL extended statistics allows an object creator to execute arbitrary code as the operating system user running the database, via a statistics expression of an anonymous RECORD type whose backend-local type identifier denotes a different row type in another session.  Versions before PostgreSQL 18.7, 17.12, 16.16, 15.20, and 14.25 are affected.