CVE-2026-56365: ImageMagick - Memory Leak in PNG Encoder via MNG Image Writing
Published Jun 30, 2026
·Updated
ImageMagick before 7.1.2-19 contains a memory leak vulnerability in the PNG encoder when writing MNG images. Attackers can trigger the encoder failure condition to exhaust memory resources and cause denial of service.
Affected Software
3 affected components
ImageMagick ImageMagick<7.1.2-19
ImageMagick ImageMagick<6.9.13-44
ImageMagick ImageMagick>=7.0.0-0<7.1.2-19
Event History
Jun 30, 2026
CVE Published
via MITRE·10:08 PM
Data Sourced
via MITRE·10:08 PM
DescriptionSeverityWeakness
Data Sourced
via NVD·11:17 PM
DescriptionSeverityWeaknessAffected Software
Frequently Asked Questions
1
What is the severity of CVE-2026-56365?
The severity of CVE-2026-56365 is rated low with a score of 3.7.
2
How do I fix CVE-2026-56365?
To fix CVE-2026-56365, update ImageMagick to version 7.1.2-19 or later.
3
What type of vulnerability is CVE-2026-56365?
CVE-2026-56365 is a memory leak vulnerability in the PNG encoder of ImageMagick when writing MNG images.
4
What can attackers achieve with CVE-2026-56365?
Attackers can exploit CVE-2026-56365 to exhaust memory resources, potentially leading to a denial of service.
5
In which versions of ImageMagick does CVE-2026-56365 exist?
CVE-2026-56365 exists in ImageMagick versions prior to 7.1.2-19.