Memory Leak Vulnerability in ImageMagick Affects Multiple Versions
CVE-2026-56366

4.8MEDIUM

Key Information:

Vendor

Imagemagick
Status
Imagemagick
Vendor
CVE Published:
10 July 2026

What is CVE-2026-56366?

ImageMagick prior to version 7.1.2-18 has a vulnerability that leads to a memory leak within the META reader when processing specifically designed APP1JPEG files. Attackers can exploit this flaw by uploading malicious APP1JPEG images, which can cause a substantial denial of service due to resource exhaustion. This vulnerability poses a significant threat as it can incapacitate the application, affecting overall performance and availability.

Affected Version(s)

ImageMagick 0 < 7.1.2-18

ImageMagick 0 < 6.9.13-43

ImageMagick 7.1.2-18

References

https://github.com/ImageMagick/ImageMagick/security/advis...
vendor-advisory
https://www.vulncheck.com/advisories/imagemagick-memory-l...
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

unbengable12
.