CVE-2026-14673 PostgreSQL amcheck does not clear untrusted search path

Untrusted search path in PostgreSQL amcheck allows a grantee of amcheck function EXECUTE privilege to execute arbitrary functions as the owners of expression indexes that depend on the search path, via setting a hostile search path before calling the amcheck function. Within major versions 18, 16...

The vulnerabilities of the Autovacuum, REINDEX, CREATE INDEX, REFRESH MATERIALIZED VIEW, CLUSTER, and pg_amcheck components of the PostgreSQL database management system allow attackers to execute arbitrary SQL functions under the user’s account.

The vulnerabilities of the Autovacuum, REINDEX, CREATE INDEX, REFRESH MATERIALIZED VIEW, CLUSTER, and pgamcheck components of the PostgreSQL database management system are related to errors that occur when one user manipulates objects for another user. Exploiting these vulnerabilities allows a...