Bug 2572533 (CVE-2026-120144)

Summary: CVE-2026-120144 postgresql: PostgreSQL: Arbitrary code execution via incomplete type-cache invalidation
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. Incomplete type-cache invalidation allows an authenticated user with permission to create database objects to trigger type confusion by modifying a composite data type while its cache entry is being populated. A successful exploit enables the attacker to execute arbitrary code on the host system with the operating system privileges of the running database service.
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Description OSIDB Bzimport 2026-11-12 14:31:45 UTC
Type confusion from incomplete PostgreSQL type-cache invalidation allows an object creator to execute arbitrary code as the operating system user running the database, via a composite type change while its cache entry is being populated.  Within major version 18, minor versions before PostgreSQL 18.7 are affected.  Versions before PostgreSQL 18 are unaffected.