CVE-2026-24484 Overview
CVE-2026-24484 is a Resource Exhaustion vulnerability in ImageMagick, the widely-used open-source software suite for editing and manipulating digital images. The vulnerability exists in how ImageMagick handles multi-layer nested MVG (Magick Vector Graphics) conversions to SVG format. Due to insufficient validation checks during these nested conversions, an attacker can craft a malicious MVG file that triggers excessive resource consumption, leading to a Denial of Service (DoS) condition.
Critical Impact
Attackers can exploit this vulnerability to cause service disruption by submitting specially crafted MVG files to applications that use ImageMagick for image processing, potentially affecting web services, content management systems, and automated image processing pipelines.
Affected Products
- ImageMagick versions prior to 7.1.2-15
- ImageMagick versions prior to 6.9.13-40
- Magick.NET versions prior to 14.10.3
Discovery Timeline
- 2026-02-24 - CVE CVE-2026-24484 published to NVD
- 2026-02-24 - Last updated in NVD database
Technical Details for CVE-2026-24484
Vulnerability Analysis
The vulnerability is classified under CWE-400 (Uncontrolled Resource Consumption). ImageMagick's image processing pipeline supports multiple vector graphics formats, including MVG and SVG. The flaw occurs when processing MVG files that contain deeply nested structures designed for conversion to SVG format.
During the conversion process, ImageMagick fails to implement proper depth checking for multi-layer nested conversions. This allows an attacker to construct an MVG file with recursive or deeply nested elements that, when processed, cause the application to consume excessive CPU and memory resources. The lack of bounds checking on conversion depth means that even a relatively small malicious file can trigger disproportionate resource consumption.
The network-based attack vector with low complexity and no required privileges makes this vulnerability particularly concerning for web applications that accept user-uploaded images and process them with ImageMagick.
Root Cause
The root cause of this vulnerability lies in the absence of recursion depth limits and proper validation checks when ImageMagick processes multi-layer nested MVG conversions to SVG format. The MVG parser does not track or limit the nesting depth of vector graphic elements during the conversion pipeline, allowing unbounded resource allocation.
Attack Vector
An attacker can exploit this vulnerability by uploading or submitting a specially crafted MVG file to any application that uses vulnerable versions of ImageMagick for image processing. The attack requires no authentication and can be executed remotely over the network. Common attack scenarios include:
- Uploading malicious MVG files to web applications with image processing functionality
- Submitting crafted images to content management systems
- Targeting automated image processing pipelines that accept external image inputs
The vulnerability manifests in the MVG to SVG conversion function where nested elements are processed without depth validation. See the GitHub Security Advisory for technical details.
Detection Methods for CVE-2026-24484
Indicators of Compromise
- Abnormally high CPU utilization on systems running ImageMagick
- Memory exhaustion alerts on image processing servers
- Increased processing time for image conversion requests
- Application crashes or timeouts during MVG file processing
Detection Strategies
- Monitor for MVG file uploads to web applications using ImageMagick
- Implement resource usage monitoring for ImageMagick processes
- Deploy application-level logging to track image conversion operations
- Set up alerts for unusual resource consumption patterns during image processing
Monitoring Recommendations
- Configure process monitoring to detect runaway ImageMagick processes
- Implement timeout controls for image conversion operations
- Monitor system resources on hosts running image processing workloads
- Review application logs for repeated conversion failures or timeouts
How to Mitigate CVE-2026-24484
Immediate Actions Required
- Upgrade ImageMagick to version 7.1.2-15 or later (for 7.x branch)
- Upgrade ImageMagick to version 6.9.13-40 or later (for 6.x branch)
- Update Magick.NET to version 14.10.3 or later if using the .NET wrapper
- Implement resource limits and timeouts for image processing operations
Patch Information
The ImageMagick development team has released patches in versions 7.1.2-15 and 6.9.13-40 that add proper validation checks for multi-layer nested MVG conversions. The fix implements depth limiting and bounds checking during the MVG to SVG conversion process. The patch can be reviewed in the GitHub Commit Fix. For .NET applications, updated binaries are available in the Magick.NET 14.10.3 release.
Workarounds
- Disable MVG and SVG coders in ImageMagick policy.xml if not required
- Implement file type validation to reject MVG files at the application layer
- Set resource limits in ImageMagick's policy.xml to constrain memory and CPU usage
- Deploy containerized image processing with strict resource quotas
# Example ImageMagick policy.xml configuration to disable MVG/SVG coders
# Add to /etc/ImageMagick-7/policy.xml or equivalent location
# Disable MVG coder
# <policy domain="coder" rights="none" pattern="MVG" />
# Set resource limits
# <policy domain="resource" name="memory" value="256MiB"/>
# <policy domain="resource" name="map" value="512MiB"/>
# <policy domain="resource" name="time" value="60"/>
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
