ImageMagick <7.1.2-18 Memory Leak in META Reader (APP1JPEG)
CVE-2026-56366 Published on July 10, 2026
ImageMagick - Memory Leak in META Reader APP1JPEG Error Path
ImageMagick before 7.1.2-18 contains a memory leak vulnerability in the META reader when processing APP1JPEG input paths. Attackers can trigger this memory leak by providing specially crafted APP1JPEG image files, causing denial of service through resource exhaustion.
Vulnerability Analysis
CVE-2026-56366 is exploitable with local system access, requires user interaction. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to have no impact on confidentiality and integrity, and a small impact on availability.
Weakness Type
What is a Memory Leak Vulnerability?
The software does not sufficiently track and release allocated memory after it has been used, which slowly consumes remaining memory. This is often triggered by improper handling of malformed data or unexpectedly interrupted sessions. In some languages, developers are responsible for tracking memory allocation and releasing the memory. If there are no more pointers or references to the memory, then it can no longer be tracked and identified for release.
CVE-2026-56366 has been classified to as a Memory Leak vulnerability or weakness.
Products Associated with CVE-2026-56366
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Affected Versions
ImageMagick:- Before 7.1.2-18 is affected.
- Version 7.1.2-18 is unaffected.
- Before 6.9.13-43 is affected.
- Version 6.9.13-43 is unaffected.