What is CVE-2026-6491?

CVE-2026-6491 is a medium-severity vulnerability in Libvips, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 5.3/10. Published 2026-04-17.

How severe is CVE-2026-6491?

Medium severity. CVSS v3 base score is 5.3 out of 10.

Buffer overflow in Libvips

CVE-2026-6491

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…

Vulnerability class: Buffer Overflow

EPSS: 0.000 (0.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L.

Affected products

N/a Libvips — versions 8.18.0, 8.18.1, 8.18.2

Weakness classification (CWE)

References

VDB-358035 | libvips nip2 vips7compat.c im_minpos_vec heap-based overflow (technical-description, vdb-entry)
VDB-358035 | CTI Indicators (IOB, IOC, IOA) (signature, permissions-required)
Submit #786994 | libvips 8.19.0 Out-of-Bounds Read (third-party-advisory)
cna@vuldb.com (issue-tracking)
cna@vuldb.com (issue-tracking)
cna@vuldb.com (exploit)
cna@vuldb.com (product)

Frequently asked questions

What is CVE-2026-6491?: CVE-2026-6491 is a medium-severity vulnerability in Libvips, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 5.3/10. Published 2026-04-17.
How severe is CVE-2026-6491?: Medium severity. CVSS v3 base score is 5.3 out of 10.