CVE-2026-6491: libvips nip2 vips7compat.c im_minpos_vec heap-based overflow

Severity: medium (CVSS 5.3 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-04-17 · updated 2026-06-17
Weakness: CWE-119

Description

A security vulnerability has been detected in libvips up to 8.18.2. The affected element is the function im_minpos_vec of the file libvips/deprecated/vips7compat.c of the component nip2 Handler. Such manipulation of the argument n leads to heap-based buffer overflow. An attack has to be approached locally. The exploit has been disclosed publicly and may be used. The vendor confirms that they will "be removing the deprecated area in libvips 8.19".

Affected products

libvips: 8.18.0, 8.18.1, 8.18.2

References

https://github.com/biniamf/pocs/tree/main/libvips_im_minpos_vec_oob
https://github.com/libvips/libvips/
https://github.com/libvips/libvips/issues/4965
https://github.com/libvips/libvips/issues/4965#issuecomment-4135003499
https://vuldb.com/submit/786994
https://vuldb.com/vuln/358035
https://vuldb.com/vuln/358035/cti

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