libvips up to 8.18.2 libvips/iofuncs/image.c vips_image_sanity integer overflow

Summaryinfo

A vulnerability has been found in libvips up to 8.18.2 and classified as critical. This affects the function vips_image_sanity of the file libvips/iofuncs/image.c. Performing a manipulation results in integer overflow. This vulnerability is cataloged as CVE-2026-69242. It is possible to initiate the attack remotely. There is no exploit available.

Detailsinfo

A vulnerability, which was classified as critical, was found in libvips up to 8.18.2. This affects the function vips_image_sanity of the file libvips/iofuncs/image.c. The manipulation with an unknown input leads to a integer overflow vulnerability. CWE is classifying the issue as CWE-190. The product performs a calculation that can produce an integer overflow or wraparound, when the logic assumes that the resulting value will always be larger than the original value. This can introduce other weaknesses when the calculation is used for resource management or execution control. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

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.

It is possible to read the advisory at github.com. This vulnerability is uniquely identified as CVE-2026-69242 since 08/03/2026. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. It demands that the victim is doing some kind of user interaction. Technical details of the vulnerability are known, but there is no available exploit.

Upgrading to version 8.18.3 eliminates this vulnerability.

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Productinfo

Name

• libvips

Version

• 8.18.0
• 8.18.1
• 8.18.2

Website

• Product: https://github.com/libvips/libvips/

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