CVE-2026-26983 in ImageMagick
Summary
by MITRE • 02/24/2026
ImageMagick is free and open-source software used for editing and manipulating digital images. Prior to versions 7.1.2-15 and 6.9.13-40, the MSL interpreter crashes when processing a invalid `` element that causes it to use an image after it has been freed. Versions 7.1.2-15 and 6.9.13-40 contain a patch.
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Analysis
by VulDB Data Team • 04/21/2026
The vulnerability identified as CVE-2026-26983 affects ImageMagick, a widely-used free and open-source software suite for digital image editing and manipulation. This critical flaw exists in versions prior to 7.1.2-15 and 6.9.13-40, where the MSL (Magick Scripting Language) interpreter exhibits unstable behavior when encountering malformed XML elements during image processing operations. The vulnerability specifically targets the interpreter's handling of invalid "element" tags within image files, creating a dangerous condition that can lead to system instability and potential exploitation. The flaw represents a classic use-after-free vulnerability that occurs during the processing of malformed image data structures.
The technical implementation of this vulnerability stems from improper memory management within the MSL interpreter component of ImageMagick. When the interpreter processes an invalid XML element, it fails to properly validate the element structure before attempting to access memory resources associated with image data. This results in the interpreter attempting to use an image resource that has already been deallocated from memory, causing a crash condition. The flaw operates through a memory safety issue where the interpreter maintains references to freed memory locations, leading to unpredictable behavior including application crashes, memory corruption, or potential code execution. This vulnerability is classified under CWE-416, which specifically addresses use-after-free conditions in software implementations.
The operational impact of CVE-2026-26983 extends beyond simple application instability, as it represents a potential vector for denial-of-service attacks and could be exploited in more sophisticated scenarios. Attackers could craft malicious image files containing malformed XML elements to trigger the vulnerability, causing ImageMagick processes to crash and potentially disrupting services that depend on image processing capabilities. In environments where ImageMagick is used for automated image handling, such as web applications, content management systems, or digital asset management platforms, this vulnerability could lead to significant service disruption. The vulnerability's exploitation potential aligns with ATT&CK technique T1203, which covers exploitation of software vulnerabilities for denial-of-service conditions.
Organizations utilizing ImageMagick should immediately implement the patches available in versions 7.1.2-15 and 6.9.13-40 to address this vulnerability. System administrators should conduct comprehensive vulnerability assessments to identify all instances of affected ImageMagick versions within their infrastructure and prioritize patch deployment. The remediation process should include thorough testing of patched versions to ensure compatibility with existing image processing workflows while maintaining security posture. Additionally, organizations should implement additional defensive measures such as input validation for image files, sandboxed processing environments, and monitoring for unusual application behavior that could indicate exploitation attempts. Security teams should also consider implementing network segmentation and access controls to limit potential attack vectors targeting ImageMagick installations. The vulnerability serves as a reminder of the critical importance of keeping open-source software components updated and maintaining robust security monitoring practices for all image processing systems.