Incomplete Cleanup Flaw in ImageMagick's JNG Decoder
CVE-2026-109276

6.9MEDIUM

Key Information:

Vendor

Imagemagick
Status
Imagemagick
Vendor
CVE Published:
12 October 2026

What is CVE-2026-109276?

ImageMagick prior to versions 6.9.13-57 and 7.1.2-32 has an incomplete cleanup flaw in its JNG decoder. This vulnerability allows attackers to exploit specially crafted JNG files, which results in the failure to properly delete temporary files during processing. Consequently, this can lead to excessive disk space usage and potential degradation of service availability, presenting a risk for affected systems.

Affected Version(s)

ImageMagick 7.0.0-0 < 7.1.2-32

ImageMagick 0 < 6.9.13-57

ImageMagick 7.1.2-32

References

https://github.com/ImageMagick/ImageMagick/security/advis...
vendor-advisory
https://github.com/ImageMagick/ImageMagick/commit/b2d579d...
patch
https://github.com/ImageMagick/ImageMagick6/commit/387528...
patch

CVSS V4

Score:
6.9
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Yanhaoxi
.