Bug 2572576 (CVE-2026-116304)

Summary: CVE-2026-116304 postgresql: postgresql: Arbitrary code execution via use-after-free in parallel worker coordination
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. An authenticated database user can exploit this vulnerability to execute arbitrary code with the privileges of the operating system user running the database. This issue stems from a use-after-free condition during the coordination of anonymous RECORD type identifiers across parallel worker processes, where one process frees shared memory while another process retains and accesses its address.
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Description OSIDB Bzimport 2026-11-12 14:34:27 UTC
Use after free in PostgreSQL coordination of anonymous RECORD type identifiers among parallel workers allows a database user to execute arbitrary code as the operating system user running the database, via causing one process to free a shared tuple descriptor while another process retains and later uses its address.  Versions before PostgreSQL 18.7, 17.12, 16.16, 15.20, and 14.25 are affected.