CVE-2026-56376: ImageMagick - Heap Use-After-Free in Meta Coder
Published Jun 23, 2026
·Updated
ImageMagick before 7.1.2-15 and 6.9.13-40 contains a heap use-after-free in the meta coder: when memory allocation fails, a single byte is written to a stale pointer. Remote attackers can trigger it by processing specially crafted image files, causing a denial of service.
Affected Software
3 affected components
ImageMagick ImageMagick<7.1.2-15, <6.9.13-40
ImageMagick ImageMagick<6.9.13-40
ImageMagick ImageMagick>=7.0.0-0<7.1.2-15
Event History
Jun 23, 2026
CVE Published
via MITRE·12:13 PM
Data Sourced
via MITRE·12:13 PM
DescriptionSeverityWeakness
Data Sourced
via NVD·01:16 PM
DescriptionSeverityWeaknessAffected Software
Frequently Asked Questions
1
What is the severity of CVE-2026-56376?
The severity of CVE-2026-56376 is rated low with a score of 3.7.
2
How do I fix CVE-2026-56376?
To fix CVE-2026-56376, upgrade ImageMagick to versions 7.1.2-15 or 6.9.13-40 and above.
3
What impact does CVE-2026-56376 have on my system?
CVE-2026-56376 can lead to a denial of service due to a heap use-after-free vulnerability triggered by specially crafted image files.
4
What versions of ImageMagick are affected by CVE-2026-56376?
CVE-2026-56376 affects ImageMagick versions prior to 7.1.2-15 and 6.9.13-40.
5
Can CVE-2026-56376 be exploited remotely?
Yes, CVE-2026-56376 can be exploited remotely by attackers through the processing of specially crafted image files.