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

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MEDIUM

libvips nip2 vips7compat.c im_minpos_vec heap-based overflow

Published Apr 17, 2026

4.8

MEDIUM

CVSS 4.0

EPSS 0.17%

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

Vendor Libvips Product Libvips Default
n/a
- Version
  8.18.0
  Status
  affected
  Constraints
  -
- Version
  8.18.1
  Status
  affected
  Constraints
  -
- Version
  8.18.2
  Status
  affected
  Constraints
  -

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor

Product

Default status

Versions

Libvips

n/a

Version	Status	Constraints
8.18.0	affected	-
8.18.1	affected	-
8.18.2	affected	-

Remediation

No remediation recorded yet.

Weaknesses (2)

CWE-119

Buffer Overflow

CWE-122

References (7)

https://github.com/biniamf/pocs/tree/main/libvips_im_minpos_vec_oob
exploit
https://github.com/libvips/libvips/
product
https://github.com/libvips/libvips/issues/4965
issue-tracking
https://github.com/libvips/libvips/issues/4965#issuecomment-4135003499
issue-tracking
https://vuldb.com/submit/786994
third-party-advisory
https://vuldb.com/vuln/358035
vdb-entrytechnical-description
https://vuldb.com/vuln/358035/cti
signaturepermissions-required

Link	Providers	Tags
https://github.com/biniamf/pocs/tree/main/libvips_im_minpos_vec_oob		exploit
https://github.com/libvips/libvips/		product
https://github.com/libvips/libvips/issues/4965		issue-tracking
https://github.com/libvips/libvips/issues/4965#issuecomment-4135003499		issue-tracking
https://vuldb.com/submit/786994		third-party-advisory
https://vuldb.com/vuln/358035		vdb-entrytechnical-description
https://vuldb.com/vuln/358035/cti		signaturepermissions-required