CVE-2026-3282
libvips unpremultiply.c vips_unpremultiply_build out-of-bounds
- State
- Published
- Severity
- 4.8 Medium
- Published
- Feb 27, 2026
- Updated
- Feb 27, 2026
- Reserved
- Feb 26, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 4.8 Medium | CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P | VulDB |
| 3.1 | 3.3 Low | 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 | VulDB |
| 3.0 | 3.3 Low | CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N/E:P/RL:O/RC:C | VulDB |
| 2.0 | 1.7 Low | AV:L/AC:L/Au:S/C:P/I:N/A:N/E:POC/RL:OF/RC:C | VulDB |
Weaknesses
Affected Products
| Product | Versions |
|---|---|
libvipsn/a |
|
References
- VDB-348011 | libvips unpremultiply.c vips_unpremultiply_build out-of-boundsvdb-entrytechnical-description
- VDB-348011 | CTI Indicators (IOB, IOC, IOA)signaturepermissions-required
- Submit #758862 | libvips 8.19.0(7fab325d2) Out-of-Bounds Readthird-party-advisory
- https://github.com/libvips/libvips/issues/4881issue-tracking
- https://github.com/libvips/libvips/pull/4886issue-trackingpatch
- https://github.com/libvips/libvips/issues/4881#issue-3944216443exploitissue-tracking
- https://github.com/libvips/libvips/commit/7215ead1e0cd7d3703cc4f5fca06d7d0f4c22b91patch
- https://github.com/libvips/libvips/product
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