CVE-2026-3282
Received Received - Intake
Out-of-Bounds Read in libvips vips_unpremultiply_build Function

Publication date: 2026-02-27

Last updated on: 2026-03-02

Assigner: VulDB

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.
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Meta Information
Published
2026-02-27
Last Modified
2026-03-02
Generated
2026-06-16
AI Q&A
2026-02-27
EPSS Evaluated
2026-06-14
NVD
CVE-2026-3282
EUVD
EUVD-2026-8989
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
libvips libvips 8.19.0
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-119 The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.
CWE-125 The product reads data past the end, or before the beginning, of the intended buffer.
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Executive Summary

This vulnerability is a flaw found in libvips version 8.19.0, specifically in the function vips_unpremultiply_build located in the file libvips/conversion/unpremultiply.c.

The issue arises when an attacker manipulates the argument alpha_band, which can cause an out-of-bounds read, potentially leading to unexpected behavior or crashes.

The attack requires local access to the system to be executed, and an exploit for this vulnerability has already been published.

Applying the provided patch (identified as 7215ead1e0cd7d3703cc4f5fca06d7d0f4c22b91) is recommended to remediate this issue.

Impact Analysis

This vulnerability can lead to an out-of-bounds read when the alpha_band argument is manipulated, which may cause the affected application to behave unexpectedly or crash.

Since the attack requires local access, the impact is limited to users or processes with local privileges.

The CVSS scores indicate a low to moderate severity, with potential partial confidentiality impact but no integrity or availability impact.

Compliance Impact

I don't know

Detection Guidance

I don't know

Mitigation Strategies

To mitigate this vulnerability, you should apply the patch identified as 7215ead1e0cd7d3703cc4f5fca06d7d0f4c22b91 to the libvips library.

Since the exploit requires local execution, restricting local access to vulnerable systems and ensuring only trusted users have such access can reduce risk.

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