ImageMagick 7.1.2-27 Memory Leak in magick CLI: Exploit via Malformed Args
CVE-2026-66011 Published on July 25, 2026
ImageMagick before 7.1.2-27 Memory Leak via Invalid CLI Options
ImageMagick before 7.1.2-27 contains a memory leak vulnerability in the magick command-line interface when invalid options are provided. Attackers can trigger memory exhaustion by repeatedly supplying malformed command-line arguments to consume system resources.
Vulnerability Analysis
CVE-2026-66011 can be exploited 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-2026-66011 has been classified to as a Memory Leak vulnerability or weakness.
Products Associated with CVE-2026-66011
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Affected Versions
ImageMagick:- Before 7.1.2-27 is affected.
- Version 7.1.2-27 is unaffected.