CVE-2026-70654

Medium

Description

libvips is a fast image processing library with low memory needs. Prior to version 8.18.3, applications that define unusual custom libvips sources and use them to process untrusted uncompressed PPM images can trigger a max/min error in vips_source_read_to_memory in libvips/iofuncs/source.c. The function uses VIPS_MAX instead of VIPS_MIN when selecting the remaining read size, allowing up to 4032 bytes to be written beyond the allocated heap buffer and causing memory corruption or a process crash. This issue is fixed in version 8.18.3.

SeverityMedium
CVSS5.8
Exploit probability—
ProductLibvips
PublishedAug 20, 2026
First seenAug 20, 2026
Weakness typeCWE-122CWE-122

How to fix

Sources list no fixed version or patch link for this vulnerability.

Affected products

ProductAffected versionsFixed in
libvips libvips< 8.18.3—

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CVE-2026-70654 · Libvips · Dark Radar