ImageMagick <=7.1.2-26 VIFF Encoder Mem Leak (CVE-2026-61870)
CVE-2026-61870 Published on July 11, 2026
ImageMagick before 7.1.2-26 Memory Leak via VIFF Encoder
ImageMagick before 7.1.2-26 contains a memory leak vulnerability in the VIFF encoder when memory allocation fails. Attackers can trigger allocation failures by processing specially crafted VIFF images to exhaust available memory and cause denial of service.
Vulnerability Analysis
CVE-2026-61870 is exploitable with local system access, and does not require authorization privileges or user interaction. This vulnerability is consided to have a high level of 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-2026-61870 has been classified to as a Memory Leak vulnerability or weakness.
Products Associated with CVE-2026-61870
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Affected Versions
ImageMagick:- Before 7.1.2-26 is affected.
- Version 7.1.2-26 is unaffected.
- Before 6.9.13-51 is affected.
- Version 6.9.13-51 is unaffected.