CLSA-2026-1772619215 Fix CVE(s): CVE-2026-25798, CVE-2026-25799, CVE-2026-26066

SECURITY UPDATE: integer overflow in pixel cache allocation - debian/patches/CVE-2026-25798.patch: add CacheOverflowSanityCheckGetSize to detect overflow in numberpixelspacketsize in OpenPixelCache - CVE-2026-25798 SECURITY UPDATE: infinite loop in IPTC metadata processing -...