{"action":"Upgrade Microsoft.AspNetCore.Authentication.Negotiate to 8.0.32 (8.x), 9.0.21 (9.x) or 10.0.13 (10.x) or later.","affected":[{"fixed":"10.0.13","introduced":"10.0.0"},{"fixed":"8.0.32","introduced":"8.0.0"},{"fixed":"9.0.21","introduced":"9.0.0"}],"component":"Microsoft.AspNetCore.Authentication.Negotiate","cve_ids":["CVE-2026-70179"],"ecosystem":"NuGet","epss":0.00629,"exploited":false,"fixed_versions":["10.0.13","8.0.32","9.0.21"],"ghsa_id":"GHSA-vrrp-6v32-2p8g","id":"tcs_01M5N92RM9QQWM8Y03V8ZMTKG0","modified_at":"2026-10-19T19:30:07.017840407Z","published_at":"2026-10-13T20:50:45Z","references":["https://osv.dev/vulnerability/GHSA-vrrp-6v32-2p8g","https://github.com/dotnet/aspnetcore/security/advisories/GHSA-vrrp-6v32-2p8g","https://nvd.nist.gov/vuln/detail/CVE-2026-70179","https://github.com/dotnet/announcements/issues/458","https://github.com/dotnet/aspnetcore","https://github.com/dotnet/aspnetcore/discussions/69794","https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-70179"],"severity":{"label":"high","score":7.5},"sources":[{"source":"osv","source_id":"GHSA-vrrp-6v32-2p8g","url":"https://osv.dev/vulnerability/GHSA-vrrp-6v32-2p8g"}],"summary":"Microsoft Security Advisory CVE-2026-70179 - ASP.NET Core Elevation of Privilege Vulnerability"}