CVE-2026-70652: Libvips

Low severity, CVSS 2.0. EPSS: 0.1% chance of exploitation in the next 30 days.

libvips is a fast image processing library with low memory needs. Prior to version 8.18.3, libvips built with libultrahdr support can incorrectly size an output buffer in libvips/foreign/uhdrsave.c within vips_foreign_save_uhdr_set_raw_hdr when a pipeline enlarges an incoming JPEG to a very large output before encoding a gain map through VipsForeignSaveUhdr. The undersized allocation can cause a heap buffer over-read that may disclose adjacent data or crash the process. This issue is fixed in version 8.18.3.

Affected products

• Libvips Libvips: before 8.18.3 (fixed in 8.18.3)

Published 2026-08-20. Last modified 2026-09-18.