CVE-2026-70654

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.

CVSS 4.0

5.8CVSS:4.0/AV:L/AC:H/AT:P/PR:L/UI:N/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N

EPSS

0.1% chance of exploitation in the next 30 days; higher than 1% of CVEs (scores of 2026-10-25)

CWE

CWE-122

Published

2026-08-20

Modified

2026-10-26

Record from

the NVD, synced 2026-10-26

References

• https://github.com/libvips/libvips/commit/80e021c6cdda0f80b756c2109d99839c94c03258
• https://github.com/libvips/libvips/pull/5038
• https://github.com/libvips/libvips/releases/tag/v8.18.3
• https://github.com/libvips/libvips/security/advisories/GHSA-rjmm-3qch-m9rg

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