VDB
CVE-2026-26131
CVE-2026-26131
PUBLISHED
CVSS 7.8 HIGH
.NET Elevation of Privilege Vulnerability
Reported by microsoft · Published March 10, 2026
Microsoft.NetCore.App.Runtime.linux-x64 is fixed in 10.0.4 (NuGet)
Incorrect default permissions in .NET allows an authorized attacker to elevate privileges locally.
Fixed versions
Upgrade to a fixed version or later. Language registries are listed first, then Linux distributions, then vendor products.
| Package | Ecosystem | Fixed in |
|---|---|---|
| Microsoft.NetCore.App.Runtime.linux-x64 | NuGet | 10.0.4 |
| Microsoft.NetCore.App.Runtime.linux-musl-arm64 | NuGet | 10.0.4 |
| Microsoft.NetCore.App.Runtime.linux-arm64 | NuGet | 10.0.4 |
| Microsoft.NetCore.App.Runtime.linux-musl-x64 | NuGet | 10.0.4 |
| Microsoft.NETCore.App.Runtime.linux-arm | NuGet | 10.0.4 |
| dotnet10-runtime | Alpine | 10.0.4-r0 |
| .NET 10.0 | Microsoft | 10.0.4 |
Risk scores
CVSS 3.1
7.8
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
Affected products
| Vendor | Product | Versions |
|---|---|---|
| Microsoft | .NET 10.0 | 10.0.0 |
| NuGet | Microsoft.NETCore.App.Runtime.linux-x64 | 10.0.0 |
| Microsoft | .NET 10.0 | 10.0.0 |
| alpine | dotnet10-runtime | 0 |
| NuGet | Microsoft.NETCore.App.Runtime.linux-musl-x64 | 10.0.0 |
| microsoft | .net | 10.0.0 |
| NuGet | Microsoft.NETCore.App.Runtime.linux-musl-arm | 10.0.0 |
| NuGet | Microsoft.NETCore.App.Runtime.linux-arm64 | 10.0.0 |
| NuGet | Microsoft.NETCore.App.Runtime.linux-musl-arm64 | 10.0.0 |
| NuGet | Microsoft.NETCore.App.Runtime.linux-arm | 10.0.0 |
Timeline
- Mar 10, 2026 CVE Published
- Mar 10, 2026 PoC Published (6 in total, the first dated here)
- Mar 11, 2026 EPSS Score (30 in total, the first dated here)
- Mar 17, 2026 Security Advisory (20 in total, the first dated here)
- Mar 22, 2026 Coalition ESS Score (2 in total, the first dated here)
- Jun 19, 2026 CVE Updated
- Aug 11, 2026 Distribution Patch (12 in total, the first dated here)
Query this with the API
The same record, from the CLI:
vulnetix vdb vuln CVE-2026-26131
vulnetix vdb fixes CVE-2026-26131Or with curl, using the org id and key from your account page:
curl -s -H "Authorization: ApiKey ${VULNETIX_ORG_ID}:${VULNETIX_API_KEY}" \
"https://api.vdb.vulnetix.com/v2/vuln/CVE-2026-26131/fixes/registry"The Community plan is free and allows 50 queries a day. Get a free API key · API quickstart