Bug 2551627 (CVE-2026-70161)

Summary: CVE-2026-70161 dotnet: dotnet: Privilege escalation via path traversal
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
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Priority: high    
Version: unspecifiedKeywords: Security
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Hardware: All   
OS: Linux   
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A flaw was found in .NET. An authorized local attacker can achieve privilege escalation due to a path traversal vulnerability caused by improper file path restrictions. By manipulating file paths to access locations outside the intended directory, the attacker can gain elevated privileges on the system.
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Description OSIDB Bzimport 2026-10-13 20:52:19 UTC
Improper limitation of a pathname to a restricted directory ('path traversal') in .NET allows an authorized attacker to elevate privileges locally.

Affected products:
- .NET SDK (release 11.0): 11.0.100-preview.1 - 11.0.100-rc.1; fixed 11.0.100-rc.2
- .NET SDK (release 10.0): 10.0.100 - 10.0.112; fixed 10.0.113
- .NET SDK (release 10.0): 10.0.400 - 10.0.401; fixed 10.0.402