Bug 2572570 (CVE-2026-116335)

Summary: CVE-2026-116335 postgresql: PostgreSQL: Arbitrary code execution via operator link type confusion
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 with permissions to create database objects can trigger a type confusion issue by creating operator commutator or negator links with mismatched result types or inconsistent reciprocal links. Successful exploitation allows an attacker to execute arbitrary code on the host system with the privileges of the operating system user running the database server.
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Description OSIDB Bzimport 2026-11-12 14:34:06 UTC
Type confusion in PostgreSQL operator commutator and negator links allows an object creator to execute arbitrary code as the operating system user running the database, via linking operators having different result types or creating inconsistent reciprocal links.  Versions before PostgreSQL 18.7, 17.12, 16.16, 15.20, and 14.25 are affected.