Technology · NuGet
Microsoft.AspNetCore.Authentication.Negotiate (NuGet) vulnerabilities
Updated . Rebuilt every hour.
Junglewise Threat Intelligence has tracked 3 vulnerabilities in Microsoft.AspNetCore.Authentication.Negotiate (NuGet): 0 in the last 7 days and 1 in the last 90 days, 0 of them critical and 0 exploited in the wild. The most recent, CVE-2026-70179, was published on 13 October 2026. 1 vulnerability in the last four weeks, up from none in the four before.
- Last 7 days
- 0
- Last 90 days
- 1
- Critical, all time
- 0
- Exploited in the wild
- 0
About Microsoft.AspNetCore.Authentication.Negotiate (NuGet)
A NuGet package that provides Windows Authentication support for ASP.NET Core applications using Negotiate, Kerberos, or NTLM.
Latest Microsoft.AspNetCore.Authentication.Negotiate (NuGet) vulnerabilities
- CVE-2026-70179: Authentication bypass by spoofing in ASP.NET Core allows an authorized attacker to elevate privileges over a network.highCVSS 7.5EPSS 0.6%
- CVE-2026-47303: Microsoft ASP.NET Core authentication bypass and privilege escalationhighCVSS 8.8EPSS 0.8%
- CVE-2026-47300: Microsoft ASP.NET Core privilege escalation in authentication algorithmhighCVSS 8.8EPSS 0.8%
Most severe Microsoft.AspNetCore.Authentication.Negotiate (NuGet) vulnerabilities
Exploited in the wild first, then by severity and CVSS score.
- CVE-2026-47303: Microsoft ASP.NET Core authentication bypass and privilege escalationhighCVSS 8.8EPSS 0.8%
- CVE-2026-47300: Microsoft ASP.NET Core privilege escalation in authentication algorithmhighCVSS 8.8EPSS 0.8%
- CVE-2026-70179: Authentication bypass by spoofing in ASP.NET Core allows an authorized attacker to elevate privileges over a network.highCVSS 7.5EPSS 0.6%
Vulnerabilities per week
1 vulnerability in the last four weeks, up from none in the four before. The last 13 weeks, by the week each vulnerability was published.
| Week of | Bar | Vulns | Critical |
|---|---|---|---|
| 17 Aug 2026 | 0 | 0 | |
| 24 Aug 2026 | 0 | 0 | |
| 31 Aug 2026 | 0 | 0 | |
| 7 Sep 2026 | 0 | 0 | |
| 14 Sep 2026 | 0 | 0 | |
| 21 Sep 2026 | 0 | 0 | |
| 28 Sep 2026 | 0 | 0 | |
| 5 Oct 2026 | 0 | 0 | |
| 12 Oct 2026 | 1 | 0 | |
| 19 Oct 2026 | 0 | 0 | |
| 26 Oct 2026 | 0 | 0 | |
| 2 Nov 2026 | 0 | 0 | |
| 9 Nov 2026 | 0 | 0 |
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A live badge for a README, a status page or an internal wiki: how many Microsoft.AspNetCore.Authentication.Negotiate (NuGet) vulnerabilities were published in the last 7 days and how many of them are critical, refreshed hourly.
[](https://junglewise.ai/threats/technologies/microsoft-aspnetcore-authentication-negotiate)<a href="https://junglewise.ai/threats/technologies/microsoft-aspnetcore-authentication-negotiate"><img src="https://junglewise.ai/threats/technologies/microsoft-aspnetcore-authentication-negotiate/badge.svg" alt="Microsoft.AspNetCore.Authentication.Negotiate (NuGet) vulnerabilities" /></a>How this is built
Junglewise Threat Intelligence collects vulnerabilities from NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories, and matches each one to the technologies and vendors it affects. Dates are the date a vulnerability was published, in UTC.
The pages are rebuilt from the database every hour. Frozen weekly and monthly reports never change once published, so they can be cited.
Use this data
The same data is at https://junglewise.ai/threats/technologies/microsoft-aspnetcore-authentication-negotiate.json, and this page as text at https://junglewise.ai/threats/technologies/microsoft-aspnetcore-authentication-negotiate.md, for scripts and language models. It is free to reuse under CC BY 4.0 with a link back to this page.
Cite as: Junglewise Threat Intelligence, "Microsoft.AspNetCore.Authentication.Negotiate (NuGet) vulnerabilities", https://junglewise.ai/threats/technologies/microsoft-aspnetcore-authentication-negotiate, 13 November 2026.