Microsoft.AspNetCore.Authentication.Negotiate
HighNuGetCVE-2026-70179
What to do
Update Microsoft.AspNetCore.Authentication.Negotiate to 10.0.13 or later.
dotnet add package Microsoft.AspNetCore.Authentication.Negotiate --version 10.0.13
An authentication bypass flaw affects the NuGet package Microsoft.AspNetCore.Authentication.Negotiate. Affected versions: >= 10.0.0, <= 10.0.12. Fixed from version 10.0.13. CVSS score 7.5.
What the flaw allows: Restricted access can be obtained without valid credentials.
- Package
- Microsoft.AspNetCore.Authentication.Negotiate
- Ecosystem
- NuGet (.NET)
- Class
- Authentication bypass
- Affected versions
- >= 10.0.0, <= 10.0.12
- CVSS
- 7.5
- Published on
- October 13, 2026
Sources
Entry built automatically from the cited security advisory, with no model rewriting. Acknowledged by the organisation or vendor, notified to an authority, or established by two independent sources.