Microsoft Semantic Kernel vulnerabilities
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Published CVEs affecting Microsoft Semantic Kernel: 2 record(s), with affected versions and fixes.cpe:2.3:a:microsoft:semantic_kernel
CVE-2026-26030
Critical · 9.9
CWE-94 Feb 19, 2026
Microsoft Semantic Kernel InMemoryVectorStore filter functionality vulnerable to remote code execution
Semantic Kernel, Microsoft's semantic kernel Python SDK, has a remote code execution vulnerability in versions prior to 1.39.4, specifically within the `InMemoryVectorStore` filter functionality. The problem has been fixed in version `python-1.39.4`. Users should upgrade this version or higher. As a workaround, avoid using `InMemoryVectorStore` for production scenarios.
CVE-2026-25592
Critical · 9.9
CWE-22 Feb 6, 2026
Semantic Kernel .NET SDK Arbitrary File Write in SessionsPythonPlugin
Semantic Kernel is an SDK used to build, orchestrate, and deploy AI agents and multi-agent systems. Prior to 1.71.0, an Arbitrary File Write vulnerability has been identified in Microsoft's Semantic Kernel .NET SDK, specifically within the SessionsPythonPlugin. The problem has been fixed in Microsoft.SemanticKernel.Core version 1.71.0. As a mitigation, users can create a Function Invocation Filter which checks the arguments being passed to any calls to DownloadFileAsync or UploadFileAsync and ensures the provided localFilePath is allow listed.