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resolvedcritical

Malicious code in WpfLightToolkit.Net (NuGet)

Malicious code was discovered in the WpfLightToolkit.Net NuGet package. The incident was identified and documented by the OpenSSF malicious packages project.

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Disclosed
Last updated
Blast radius
WpfLightToolkit.Net package on NuGet; impact scope depends on adoption and affected versions
Ecosystems
NuGet
Attack vectors
Compromised package
Affected entities
  • WpfLightToolkit.NetNuGet package

A malicious code vulnerability was identified in the WpfLightToolkit.Net package distributed via NuGet. The issue was detected and cataloged by the OpenSSF's malicious packages initiative, which maintains a public record of known malicious software supply chain incidents.\n\nThe package was flagged as containing malicious code, indicating a compromise of the package itself rather than a legitimate vulnerability in the software. This type of incident represents a direct threat to any developer or organization that installed or used the affected package.\n\nThe incident was disclosed on July 20, 2026, and documented in GitHub Advisory GHSA-gjh4-67x3-v862, with supporting details available in the OpenSSF malicious packages repository.

Indicators of compromise

Packages
  • WpfLightToolkit.Net

Remediation

  • Remove WpfLightToolkit.Net from all projects and dependencies
  • Audit systems that may have installed or executed the malicious package
  • Review build logs and deployment records to identify affected versions and systems
  • Replace with a legitimate alternative or verified clean version if the package is still needed
  • Update dependency management tools to block or alert on this package

Sources

  1. GitHub Advisory GHSA-gjh4-67x3-v862 · GitHub Advisory Database

Cite this entry

"Malicious code in WpfLightToolkit.Net (NuGet)." supplychainattack.org, Supply Chain Attack Incident Catalog. Disclosed July 20, 2026; last updated July 20, 2026. https://supplychainattack.org/incident/malicious-code-in-wpflighttoolkit-net-nuget-lvwvrs

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