CVE-2026-70652
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.
Scoring
- Severity
- LOW
- CVSS base score
- 2
- CVSS vector
- CVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:L/VI:N/VA:L/SC:N/SI:N/SA:N
- EPSS probability
- 0.11%
- CWE
- CWE-126
- Published
- 2026-08-20
- Last modified
- 2026-08-21
Affected products
- libvips libvips
Weakness type
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