Bug 2555779

Summary: CVE-2026-96230 dotnet9.0: ASP.NET Core Remote Code Execution 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": ["da336934-4a25-40e9-bc1e-bbe5e3f559d8"]}
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Bug Depends On:    
Bug Blocks: 2548804    

Description Charles Timko 2026-10-19 19:13:31 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.

Improper neutralization of input during web page generation ('cross-site scripting') in ASP.NET Core allows an unauthorized attacker to execute code over a network.

Affected packages:
- Microsoft.AspNetCore.Components.WebAssembly.Server (release 9.0): 9.0.0 - 9.0.20; fixed 9.0.21
- Microsoft.AspNetCore.Components.WebAssembly.Server (release 10.0): 10.0.0 - 10.0.12; fixed 10.0.13
- Microsoft.AspNetCore.Components.WebAssembly.Server (release 8.0): 8.0.0 - 8.0.31; fixed 8.0.32
- Microsoft.AspNetCore.Components.WebAssembly.Server (release 11.0): 11.0.0-preview.1 - 11.0.0-rc.1; fixed 11.0.0-rc.2