CVE-2026-49218 — Magick.NET-Q16-AnyCPU
HIGHCVE-2026-49218 is a high-severity (CVSS 7.5) Improper Input Validation vulnerability in Magick.NET-Q16-AnyCPU. A fix is available for Magick.NET-Q16-AnyCPU — see the affected versions and patch details below.
ImageMagick: Policy Bypass in DCM decoder could result in image with invalid dimensions
Exploitation Status
No confirmed exploitation observed yet
- CISA assesses this as automatable — exploitation doesn’t require manual, per-target effort, which raises the odds of mass scanning and opportunistic attacks.
- CISA’s own triage has not observed active exploitation or public proof-of-concept code for this CVE as of its last assessment.
Exploitation and automatability from CISA’s SSVC triage for CVE-2026-49218.
EPSS Exploitation Probability
EPSS (Exploit Prediction Scoring System) is a daily probability model maintained by FIRST.org. It estimates the likelihood a CVE will be exploited in production environments within the next 30 days, derived from real-world threat intelligence signals.
How urgent is this, really
CVE-2026-49218 plotted by exploitation likelihood (EPSS) against impact (CVSS). The shaded corner — EPSS 50%+ and CVSS 7.0+ — is where this CVE doesn't sit, though severity or exploitability alone can still warrant action.
Where this sits among everything scored
Of 379,145 CVEs with a current EPSS score, this one falls in the < 10% band (highlighted). Real counts from FIRST.org, not a sample — log-scaled since the landscape is heavily right-skewed.
Real-World Exposure
Magick.NET-Q16-AnyCPU.NETMagick.NET-Q16-HDRI-AnyCPU.NETMagick.NET-Q16-HDRI-OpenMP-arm64.NETMagick.NET-Q16-HDRI-arm64.NETMagick.NET-Q16-HDRI-x64.NETMagick.NET-Q16-HDRI-x86.NETMagick.NET-Q16-OpenMP-arm64.NETMagick.NET-Q16-OpenMP-x64+9 moreReal-time download stats are indexed for npm and PyPI packages. This vulnerability affects NuGet packages — download data is not available via public APIs for these ecosystems.
Description
ImageMagick is free and open-source software used for editing and manipulating digital images. Prior to versions 6.9.13-48 and 7.1.2-24, a missing check in the DCM decoder could result in an image with invalid dimensions and that could cause crashes in other operation. This issue has been patched in versions 6.9.13-48 and 7.1.2-24.
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| .NETNuGet | Magick.NET-Q16-AnyCPU | all versions | 14.14.0dotnet add package Magick.NET-Q16-AnyCPU --version 14.14.0 |
| .NETNuGet | Magick.NET-Q16-HDRI-AnyCPU | all versions | 14.14.0dotnet add package Magick.NET-Q16-HDRI-AnyCPU --version 14.14.0 |
| .NETNuGet | Magick.NET-Q16-HDRI-OpenMP-arm64 | all versions | 14.14.0dotnet add package Magick.NET-Q16-HDRI-OpenMP-arm64 --version 14.14.0 |
| .NETNuGet | Magick.NET-Q16-HDRI-arm64 | all versions | 14.14.0dotnet add package Magick.NET-Q16-HDRI-arm64 --version 14.14.0 |
| .NETNuGet | Magick.NET-Q16-HDRI-x64 | all versions | 14.14.0dotnet add package Magick.NET-Q16-HDRI-x64 --version 14.14.0 |
| .NETNuGet | Magick.NET-Q16-HDRI-x86 | all versions | 14.14.0dotnet add package Magick.NET-Q16-HDRI-x86 --version 14.14.0 |
Detection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for Magick.NET-Q16-AnyCPU, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update Magick.NET-Q16-AnyCPU to 14.14.0 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2026-49218 is resolved across your whole dependency graph.
Workarounds
If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.
How O3 protects you
O3 Security's impact-aware SCA analyses which vulnerable code paths your application actually calls, so a match like CVE-2026-49218 can be triaged on real exposure rather than presence alone.
Tailored to CVE-2026-49218. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.
Fixing This On Your OS
If you run this on a Linux distribution, patch through your package manager against the distro's own security advisory below — it tracks the exact backported fix for your release, which can ship on a different timeline (and sometimes a different severity) than the upstream project.
``` It is important to note that ImageMagick has been removed from Red Hat Enterprise Linux 8 and later releases. Therefore, current supported RHEL 8 and newer systems are not affected by this issue unless ImageMagick is installed from third-party or custom repositories. For additional information, refer to…
Red Hat is not aware of a practical temporary workaround that fully mitigates this issue or meets Red Hat Product Security's standards for usability, deployment, applicability, or stability. Customers are advised to apply the relevant security updates when they become available.Source: Red Hat security advisory for CVE-2026-49218 (CC BY 4.0)
| Product | Fixed in | Advisory |
|---|---|---|
| Red Hat Enterprise Linux 7 Extended Lifecycle Support | ImageMagick-0:6.9.10.68-17.el7_9 | RHSA-2026:32961 |
Frequently Asked Questions
Is CVE-2026-49218 in your dependencies?
O3 Security finds CVE-2026-49218 across NuGet dependencies, including transitive ones, and its impact-aware SCA ranks findings by whether your code actually calls the vulnerable path.