Vulnerability DatabaseCVE-2026-26131
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CVE-2026-26131
March 10, 2026
Incorrect default permissions in .NET allows an authorized attacker to elevate privileges locally.
Affected Packages
microsoft.netcore.app.runtime.linux-x64 (NUGET):
Affected version(s) >=10.0.0 <10.0.4
Fix Suggestion:
Update to version 10.0.4
Microsoft.NetCore.App.Runtime.linux-musl-x64 (NUGET):
Affected version(s) >=10.0.0 <10.0.4
Fix Suggestion:
Update to version 10.0.4
microsoft.netcore.app.runtime.linux-musl-arm (NUGET):
Affected version(s) >=10.0.0 <10.0.4
Fix Suggestion:
Update to version 10.0.4
microsoft.netcore.app.runtime.linux-arm (NUGET):
Affected version(s) >=10.0.0 <10.0.4
Fix Suggestion:
Update to version 10.0.4
microsoft.netcore.app.runtime.linux-arm64 (NUGET):
Affected version(s) >=10.0.0 <10.0.4
Fix Suggestion:
Update to version 10.0.4
microsoft.netcore.app.runtime.linux-musl-arm64 (NUGET):
Affected version(s) >=10.0.0 <10.0.4
Fix Suggestion:
Update to version 10.0.4
Microsoft.NetCore.App.Runtime.linux-x64 (NUGET):
Affected version(s) >=10.0.0 <10.0.4
Fix Suggestion:
Update to version 10.0.4
microsoft.netcore.app.runtime.linux-musl-x64 (NUGET):
Affected version(s) >=10.0.0 <10.0.4
Fix Suggestion:
Update to version 10.0.4
Microsoft.NetCore.App.Runtime.linux-arm (NUGET):
Affected version(s) >=10.0.0 <10.0.4
Fix Suggestion:
Update to version 10.0.4
Microsoft.NetCore.App.Runtime.linux-musl-arm (NUGET):
Affected version(s) >=10.0.0 <10.0.4
Fix Suggestion:
Update to version 10.0.4
Microsoft.NetCore.App.Runtime.linux-musl-arm64 (NUGET):
Affected version(s) >=10.0.0 <10.0.4
Fix Suggestion:
Update to version 10.0.4
Microsoft.NetCore.App.Runtime.linux-arm64 (NUGET):
Affected version(s) >=10.0.0 <10.0.4
Fix Suggestion:
Update to version 10.0.4
Related Resources (4)
https://github.com/dotnet/runtime/security/advisories/GHSA-crjq-wm6x-6qx7
https://github.com/dotnet/runtime
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-26131
https://nvd.nist.gov/vuln/detail/CVE-2026-26131
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CVSS v4
Base Score:
8.5
Attack Vector
LOCAL
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
LOW
User Interaction
NONE
Vulnerable System Confidentiality
HIGH
Vulnerable System Integrity
HIGH
Vulnerable System Availability
HIGH
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
7.8
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Exploit Maturity
UNPROVEN
Weakness Type (CWE)
Incorrect Default Permissions
CWE-276
EPSS
Base Score:
0.04