Malicious code in Sanka.UI3.WinForms (NuGet)
Multiple versions of the Sanka.UI3.WinForms NuGet package contained malicious code. The incident was identified and credited to the OpenSSF malicious packages project.
- Disclosed
- Last updated
- Blast radius
- Multiple versions of Sanka.UI3.WinForms NuGet package
- Ecosystems
- Attack vectors
- Affected entities
- Sanka.UI3.WinFormsNuGet package with malicious code in multiple versions
The Sanka.UI3.WinForms NuGet package was found to contain malicious code across multiple versions. The vulnerability was identified and documented by the OpenSSF malicious packages project (MAL-2024-4638).
This incident represents a compromised package supply chain attack affecting the .NET/NuGet ecosystem. The malicious code was present in numerous package versions, indicating a systematic compromise of the package rather than an isolated incident.
The incident was publicly disclosed on July 20, 2026, via GitHub Security Advisory GHSA-875q-m8rm-8xgg. The OpenSSF's malicious packages repository serves as the authoritative source for this classification.
Indicators of compromise
- Packages
- Sanka.UI3.WinForms
Remediation
- Remove all versions of Sanka.UI3.WinForms from affected projects
- Audit project dependencies for any use of this package
- Review application logs for suspicious activity that may indicate exploitation
- Update to a clean, verified version of any required UI framework
- Monitor NuGet package feeds for similar malicious packages
Sources
- GitHub Advisory GHSA-875q-m8rm-8xgg · GitHub Advisory Database
Cite this entry
"Malicious code in Sanka.UI3.WinForms (NuGet)." supplychainattack.org, Supply Chain Attack Incident Catalog. Disclosed July 20, 2026; last updated July 20, 2026. https://supplychainattack.org/incident/malicious-code-in-sanka-ui3-winforms-nuget-1c279x
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