postgresql-14, postgresql-16, postgresql-17 vulnerabilities

Altan Birler discovered that PostgreSQL incorrectly validated oidvector
types. An attacker could possibly use this issue to obtain a few bytes of
sensitive information. (CVE-2026-2003)

Daniel Firer discovered that PostgreSQL incorrectly validated input in the
intarray extension. An attacker could possibly use this issue to execute
arbitrary code. (CVE-2026-2004)

It was dicovered that PosgreSQL incorrectly handled certain pgcrypto memory
operations. An attacker could possibly use this issue to execute arbitrary
code. (CVE-2026-2005)

Paul Gerste and Moritz Sanft discovered that PostgreSQL incorrectly
validated multibyte character lengths. An attacker could possibly use this
issue to execute arbitrary code. (CVE-2026-2006)