CVE-2026-26131

Description

Incorrect default permissions in .NET allows an authorized attacker to elevate privileges locally.

Affected packages (8)

• Bitnami/dotnet>= 10.0.0, < 10.0.4
• Bitnami/dotnet-sdk>= 10.0.0, < 10.0.4
• NuGet/Microsoft.NetCore.App.Runtime.linux-arm>= 10.0.0, < 10.0.4
• NuGet/Microsoft.NetCore.App.Runtime.linux-arm64>= 10.0.0, < 10.0.4
• NuGet/Microsoft.NetCore.App.Runtime.linux-musl-arm>= 10.0.0, < 10.0.4
• NuGet/Microsoft.NetCore.App.Runtime.linux-musl-arm64>= 10.0.0, < 10.0.4
• NuGet/Microsoft.NetCore.App.Runtime.linux-musl-x64>= 10.0.0, < 10.0.4
• NuGet/Microsoft.NetCore.App.Runtime.linux-x64>= 10.0.0, < 10.0.4

CVSS scores

References (4)

• ADVISORYhttps://nvd.nist.gov/vuln/detail/CVE-2026-26131
• PATCHhttps://github.com/dotnet/runtime
• WEBhttps://github.com/dotnet/runtime/security/advisories/GHSA-crjq-wm6x-6qx7
• WEBhttps://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-26131