CVE-2026-70652

libvips versions before 8.18.3 mis-size an output buffer in vips_foreign_save_uhdr_set_raw_hdr (libvips/foreign/uhdrsave.c) when a pipeline enlarges a JPEG before encoding a gain map, causing a heap buffer over-read that can leak adjacent data or crash the process. Upgrade to 8.18.3 to remediate....