Heap Buffer Over-read Vulnerability in ImageMagick Software
CVE-2026-27798

4MEDIUM

Key Information:

Vendor

Imagemagick
Status
Imagemagick
Vendor
CVE Published:
25 February 2026

What is CVE-2026-27798?

ImageMagick, a widely-used open-source image manipulation tool, has a heap buffer over-read vulnerability that can be exploited when handling images with small dimensions through the '-wavelet-denoise' operator. This flaw may lead to unintended memory access, posing security concerns for applications relying on ImageMagick for image processing. Users are advised to upgrade to patched versions 7.1.2-15 or 6.9.13-40 to mitigate potential risks.

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Deploy the Patch

Affected Version(s)

ImageMagick < 6.9.13-40 < 6.9.13-40

ImageMagick >= 7.0.0, < 7.1.2-15 < 7.0.0, 7.1.2-15

References

https://github.com/ImageMagick/ImageMagick/security/advis...
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https://github.com/ImageMagick/ImageMagick/commit/0377e60...
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https://github.com/dlemstra/Magick.NET/releases/tag/14.10.3
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CVSS V3.1

Score:
4
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
None
Availability:
Low
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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