CLSA-2026-1778928586 libpng: Fix of CVE-2026-34757

CVE-2026-34757: use-after-free in pngsetPLTE, pngsettRNS, pngsethIST, pngsettext, pngsetsPLT and pngsetunknownchunks when the caller passes the pointer returned by the corresponding getter back to the setter...

SUSE-SU-2026:1601-1 Security update for libpng16

This update for libpng16 fixes the following issue: - CVE-2026-34757: information disclosure and data corruption due to use-after-free in pngsetPLTE, pngsettRNS and pngsethIST bsc1261957...