CVE-2026-69242 libvips: Integer overflow leading to heap buffer overflow leading to possible attacker-controlled mmap-resident write
A crafted TIFF file can trigger an integer overflow in libvips, leading to heap buffer overflows, potential data disclosure, and possible remote code execution.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-69242?
CVE-2026-69242 is a high-severity vulnerability in libvips, published on 20 Aug 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
libvips is a fast image processing library with low memory needs. Prior to version 8.18.3, a crafted many-band TIFF processed through VipsForeignLoadTiff can evade scanline validation in libvips/iofuncs/image.c and cause an integer overflow in vips_image_sanity. The resulting buffer-region calculation can access attacker-controlled negative offsets in mmap-resident allocations, allowing reads or writes of other image data, possible data disclosure through uncompressed .v output, and likely process crashes. Remote code execution has not been demonstrated but cannot be ruled out. This issue is fixed in version 8.18.3.
Which versions are affected by CVE-2026-69242?
How do I fix CVE-2026-69242?
Upgrade to a fixed version.
Is CVE-2026-69242 being exploited?
There is no known exploitation of CVE-2026-69242 in the wild and no public exploit code.
Sources
Also known as DEBIAN-CVE-2026-69242, GHSA-9rwc-f68v-4482, UBUNTU-CVE-2026-69242.