Bug 2572554 (CVE-2026-116329)

Summary: CVE-2026-116329 postgresql: postgresql: arbitrary code execution via nested SET DATA TYPE during statistics import
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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Hardware: All   
OS: Linux   
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A flaw was found in PostgreSQL. A type confusion vulnerability in the statistics import mechanism allows an authenticated user with table maintenance privileges to execute arbitrary code with the permissions of the operating system user running the database service. An attacker can trigger this issue by supplying nested SET DATA TYPE commands during the conversion of imported statistical values.
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Description OSIDB Bzimport 2026-11-12 14:33:04 UTC
Type confusion in PostgreSQL statistics import allows a table maintainer to execute arbitrary code as the operating system user running the database, via nested SET DATA TYPE during conversion of values to import.  Within major version 18, minor versions before PostgreSQL 18.7 are affected.  Versions before PostgreSQL 18 are unaffected.