Bug 2553820

Summary: CVE-2026-70183 dotnet9.0: ASP.NET Core Elevation of Privilege Vulnerability [fedora-all]
Product: [Fedora] Fedora Reporter: Charles Timko <ctimko>
Component: dotnet9.0Assignee: Omair Majid <omajid>
Status: NEW --- QA Contact:
Severity: high Docs Contact:
Priority: high    
Version: rawhideCC: omajid
Target Milestone: ---Keywords: Security, SecurityTracking
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Hardware: Unspecified   
OS: Unspecified   
Whiteboard: {"flaws": ["9221472c-70a8-4a97-9cc7-bf0d3978ed98"]}
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Description Charles Timko 2026-10-15 21:09:14 UTC
Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.

Concurrent execution using shared resource with improper synchronization ('race condition') in ASP.NET Core allows an authorized attacker to elevate privileges over a network.

Affected products:
- ASP.NET Core Runtime (release 11.0): 11.0.0-preview.1 - 11.0.0-rc.1; fixed 11.0.0-rc.2
- ASP.NET Core Runtime (release 10.0): 10.0.0 - 10.0.12; fixed 10.0.13
- ASP.NET Core Runtime (release 9.0): 9.0.0 - 9.0.20; fixed 9.0.21 
- ASP.NET Core Runtime (release 8.0): 8.0.0 - 8.0.31; fixed 8.0.32