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Threats Tagged 'cve-2026-45555'

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Threats Tagged 'cve-2026-45555'

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CVE-2026-45555: CWE-94: Improper Control of Generation of Code ('Code Injection') in MarcelRoozekrans roslyn-codelens-mcpCVE-2026-45555
0

Roslyn CodeLens MCP Server is a Roslyn-based MCP server providing semantic code intelligence for .NET codebases. From 0.0.9 to 1.17.0, the get_diagnostics MCP tool loads and executes all DiagnosticAnalyzer assemblies referenced by the target solution without any allowlist, signature check, or user confirmation; includeAnalyzers defaults to true, so no explicit opt-in is required. An attacker who can place a malicious .csproj referencing an attacker-controlled DLL in a location the victim opens with the MCP server will achieve arbitrary code execution in the server process with the server's OS privileges. This vulnerability is fixed in 1.17.0.

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