Red Hat Security Advisory: postgresql18 security update

CVE-2026-2003 — postgresql: PostgreSQL oidvector discloses a few bytes of memory CVE-2026-2004 — postgresql: PostgreSQL intarray missing validation of type of input to selectivity estimator executes arbitrary code CVE-2026-2005 — postgresql: PostgreSQL pgcrypto heap buffer overflow executes arbitrary code CVE-2026-2006 — postgresql: PostgreSQL missing validation of multibyte character length executes arbitrary code CVE-2026-2007 — postgresql: PostgreSQL pg_trgm heap buffer overflow writes pattern onto server memory