Malicious Package Affecting portable.xaml.net package, versions [0.0.27][0.0.3][0.0.13][1.0.1][0.0.9][1.0.4][0.0.31][0.0.10][0.0.23][0.0.18][0.0.30][0.0.15][0.0.7][0.0.22][0.0.25][0.0.6][0.0.21][0.0.14][0.0.20][0.0.28][0.0.29][0.0.24][0.0.2][1.0.2][0.0.16][0.0.11][1.0.5][0.0.17][0.0.26][0.0.5][0.0.4][0.0.12][0.0.8][1.0.3][0.0.19][1.0.0]
Threat Intelligence
Exploit Maturity
Snyk has reported that there have been attempts or successful attacks targeting this vulnerability.
Attacked
Do your applications use this vulnerable package?
In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.
Test your applications- Snyk IDSNYK-DOTNET-PORTABLEXAMLNET-18138128
- published22 Jul 2026
- disclosed20 Jul 2026
- creditUnknown
Introduced: 20 Jul 2026
New Malicious CVE NOT AVAILABLE CWE-506 (opens in a new tab)Common Weakness Enumeration (CWE) is a category system for software weaknesses
How to fix?
Avoid using all malicious instances of the Portable.Xaml.Net package.
Overview
Portable.Xaml.Net is a malicious package. This package contains malicious code, and its content was removed from the official package manager. While this package might be attempting to impersonate a valid organization, there is no connection between that organization and this package authorship.