High
ASP.NET Core Elevation of Privilege Vulnerability
Authentication bypass by spoofing in ASP.NET Core allows an authorized attacker to elevate privileges over a network.
Announced Source revision 1
Original source ↗CVE-2026-70179
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-70179
Microsoft Visual Studio 2022 version 17.14
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Microsoft Visual Studio 2026 version 18.10
Source reference: /containers/cna/affected/1/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Microsoft.AspNetCore.Authentication.Negotiate
Source reference: /containers/cna/affected/2/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"vendor": "Microsoft",
"product": "Microsoft Visual Studio 2022 version 17.14",
"versions": [
{
"status": "affected",
"version": "17.14.0",
"lessThan": "17.14.42",
"versionType": "custom"
}
]
},
{
"vendor": "Microsoft",
"product": "Microsoft Visual Studio 2026 version 18.10",
"versions": [
{
"status": "affected",
"version": "18.10.0",
"lessThan": "18.10.4",
"versionType": "custom"
}
]
},
{
"vendor": "Microsoft",
"product": "Microsoft.AspNetCore.Authentication.Negotiate",
"versions": [
{
"status": "affected",
"version": "10.0.0",
"lessThan": "10.0.13",
"versionType": "custom"
}
],
"platforms": [
".NET 10.0 runtime installed on Linux",
".NET 10.0 runtime installed on Mac OS",
".NET 10.0 runtime installed on Windows",
".NET 8.0 runtime installed on Linux",
".NET 8.0 runtime installed on Mac OS",
".NET 8.0 runtime installed on Windows",
".NET 9.0 runtime installed on Linux",
".NET 9.0 runtime installed on Mac OS",
".NET 9.0 runtime installed on Windows"
]
}
]- Related CVEs
- CVE-2026-70179
Source reference:
/cveMetadata/cveId
Publisher severity
high
Source reference: /containers/cna/metrics
- Event
- #53686 · Revision 1
- Added to Heist Feed
- Publisher date