Heap-Use-After-Free Vulnerability in ImageMagick by ImageMagick
CVE-2026-86425

4.8MEDIUM

Key Information:

Vendor

Imagemagick
Status
Imagemagick
Vendor
CVE Published:
7 September 2026

What is CVE-2026-86425?

ImageMagick versions prior to 7.1.2-30 and 6.9.x before 6.9.13-55 are affected by a heap-use-after-free vulnerability found in the Layer method of PerlMagick. An attacker can exploit this flaw by supplying a carefully crafted list of images, leading to unauthorized memory access after the deallocation process. This may result in a denial of service as the application could crash unexpectedly.

Affected Version(s)

ImageMagick 0 < 7.1.2-30

ImageMagick 0 < 6.9.13-55

ImageMagick 7.1.2-30

References

https://github.com/ImageMagick/ImageMagick/security/advis...
vendor-advisory
https://www.vulncheck.com/advisories/imagemagick-before-7...
third-party-advisory

CVSS V4

Score:
4.8
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
Low
Attack Vector:
Local
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
Unknown

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

mangowithegg
.