SECURITY UPDATE: Fix stack buffer overrun and SQL injection in refint contrib module
debian/patches/CVE-2026-6637.patch: Fix stack buffer overrun and
SQL injection in refint contrib module, plus follow-up segfault fix
in check_foreign_key() when a CASCADE update key value is NULL
CVE-2026-6637
SECURITY UPDATE: Fix format-string memory disclosure via crafted time zone in timeofday() (also harden pg_strftime() error handling)
debian/patches/CVE-2026-6474.patch: Fix format-string memory disclosure via crafted time zone in timeofday() (also harden pg_strftime() error handling)
CVE-2026-6474
SECURITY UPDATE: Use timingsafe_bcmp() in MD5 password and RADIUS authentication paths to prevent timing side-channel
debian/patches/CVE-2026-6478.patch: Use timingsafe_bcmp() in MD5 password and RADIUS authentication paths to prevent timing side-channel