CVE WatchNov 12, 2026

CVE-2026-6460

Type confusion in PostgreSQL allows an object creator to execute arbitrary code as the operating system user running the database, via ALTER

CVSS

8.8

High

EPSS

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KEV

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Exploit Today

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0-100

Published: Nov 12, 2026 · Last modified: Nov 12, 2026 · CWE-843

EPSS · 30d

Not enough EPSS history yet.

Technical description

Type confusion in PostgreSQL allows an object creator to execute arbitrary code as the operating system user running the database, via ALTER ... SET DATA TYPE primarily. Other DDL attack routes exist, such as "ALTER TABLE ... ADD COLUMN; ROLLBACK; ALTER TABLE ... ADD COLUMN". The system had inadequate tracking of typed values, and values were not self-identifying. Stale values could appear in data dictionary entries, PL/pgSQL variables, and many other parts of the system. PostgreSQL Versions before PostgreSQL 18.7, 17.12, 16.16, 15.20, and 14.25 are affected.

Official references

www.postgresql.orghttps://www.postgresql.org/support/security/CVE-2026-6460/

Related CVEs

CVECVSSEPSSKEVRExploitTitleMod.

CVE-2026-184478.8 HIG

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———Type confusion in PostgreSQL SQL-language functions allows an object creator to execute arbitrary code as the operating system user running the database, via an output parameter of type "any". Versions before PostgreSQL 18.7, 17.12, 16.16, 15.20, and 14.25 are affected.4h CVE-2026-1201518.8 HIG

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———Type confusion in PostgreSQL plpgsql record-field assignment allows an object creator to execute arbitrary code as the operating system user running the database, via a reentrant domain CHECK that changes a RECORD variable's row type while a value is being cast. Versions before PostgreSQL 18.7, 17.12, 16.16, 15.20, and 14.25 are affected.4h CVE-2026-1201488.1 HIG

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———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.4h CVE-2026-1201448.8 HIG

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———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.4h CVE-2026-1201428.8 HIG

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———Type confusion in PostgreSQL anonymous RECORD types allows an object creator to execute arbitrary code as the operating system user running the database, via row types having dropped attributes in the same positions but with different widths or alignments. Within major versions 17-18, minor versions before PostgreSQL 18.7 and 17.12 are affected. Versions before PostgreSQL 17 are unaffected.4h CVE-2026-1201418.8 HIG

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———Type confusion in PostgreSQL materialized set-returning functions allows a database user to execute arbitrary code as the operating system user running the database, via returning rows having different dynamic RECORD return types. json_populate_recordset() is one affected function. Versions before PostgreSQL 18.7, 17.12, 16.16, 15.20, and 14.25 are affected.4h