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

Quick assessment

Affected
n/a libvips
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

libvips是libvips开源的一个具有低内存需求的快速图像处理库。 libvips 8.19.0版本存在缓冲区错误漏洞，该漏洞源于对文件libvips/conversion/unpremultiply.c中函数vips_unpremultiply_build的参数alpha_band的错误操作，可能导致越界读取。

CVSS 3.3 · Low EPSS 0.20% · P9
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I. Basic Information for CVE-2026-3282

Vulnerability Information
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Vulnerability Title
libvips unpremultiply.c vips_unpremultiply_build out-of-bounds
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
跨界内存读
Source: CVE Program / CVE List V5
Vulnerability Title
libvips 缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
libvips是libvips开源的一个具有低内存需求的快速图像处理库。 libvips 8.19.0版本存在缓冲区错误漏洞，该漏洞源于对文件libvips/conversion/unpremultiply.c中函数vips_unpremultiply_build的参数alpha_band的错误操作，可能导致越界读取。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
- libvips 8.19.0 cpe:2.3:a:libvips:libvips:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-3282

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III. Intelligence Information for CVE-2026-3282

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Vendor Advisories for CVE-2026-3282 (1)

Same Patch Batch · n/a · 2026-02-27 · 8 CVEs total

CVE-2026-3292 6.3 MEDIUM jizhiCMS Batch Model.php findAll sql injection
CVE-2026-3281 5.3 MEDIUM libvips bandrank.c vips_bandrank_build heap-based overflow
CVE-2026-3284 3.3 LOW libvips extract.c vips_extract_area_build integer overflow
CVE-2026-3283 3.3 LOW libvips extract.c vips_extract_band_build out-of-bounds
CVE-2025-69437 PublicCMS 安全漏洞
CVE-2026-26861 CleverTap Web SDK 安全漏洞
CVE-2026-26862 CleverTap Web SDK 安全漏洞

IV. Related Vulnerabilities

Same product: libvips
Same vendor: n/a
Same weakness: CWE-125

V. Comments for CVE-2026-3282

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