Vulnerability · Published Feb 27, 2026 · Assigned by VulDB

CVE-2026-3282libvips unpremultiply.c vips_unpremultiply_build out-of-bounds

Low 3.3

In plain English

A low-severity out-of-bounds read in libvips. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 16% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)3.3Low

Exploit odds (30 days)0.2%top 84.2% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official description

A flaw has been found in libvips 8.19.0. This vulnerability affects the function vips_unpremultiply_build of the file libvips/conversion/unpremultiply.c. Executing a manipulation of the argument alpha_band can lead to out-of-bounds read. The attack needs to be launched locally. The exploit has been published and may be used. This patch is called 7215ead1e0cd7d3703cc4f5fca06d7d0f4c22b91. A patch should be applied to remediate this issue.

Affected packages & fixed versions

Ecosystem	Package	Fixed in	Advisory
Debian:12	vips	8.14.1-3+deb12u3	DEBIAN-CVE-2026-3282
Debian:13	vips	8.16.1-1+deb13u1	DEBIAN-CVE-2026-3282
Debian:14	vips	8.18.0-3	DEBIAN-CVE-2026-3282
Ubuntu:25.10	vips	no fix listed	UBUNTU-CVE-2026-3282
Ubuntu:26.10	vips	no fix listed	UBUNTU-CVE-2026-3282

Affected products (as reported)

Vendor	Product	Versions
n/a	libvips	8.19.0

Weakness: CWE-125, CWE-119 · Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N/E:P/RL:O/RC:C

References

VDB-348011 | libvips unpremultiply.c vips_unpremultiply_build out-of-bounds vdb-entry, technical-description
VDB-348011 | CTI Indicators (IOB, IOC, IOA) signature, permissions-required
Submit #758862 | libvips 8.19.0(7fab325d2) Out-of-Bounds Read third-party-advisory
https://github.com/libvips/libvips/issues/4881 issue-tracking
https://github.com/libvips/libvips/pull/4886 issue-tracking, patch
https://github.com/libvips/libvips/issues/4881#issue-3944216443 exploit, issue-tracking
https://github.com/libvips/libvips/commit/7215ead1e0cd7d3703cc4f5fca06d7d0f4c22b91 patch
https://github.com/libvips/libvips/ product