CVE-2026-25592
CRITICAL SEVERITYCVSS Score & Metrics
Base Score
10.0 / 10
Vector String
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Vulnerability Description
Semantic Kernel is an SDK used to build, orchestrate, and deploy AI agents and multi-agent systems. Prior to 1.70.0, 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 1.70.0. 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.
Vulnerability Details
Published Date
Last Modified
CWE ID
CWE-22
Source
GitHub
Vendor
nuget
Product
Microsoft.SemanticKernel.Core
External References
- https://github.com/microsoft/semantic-kernel/security/advisories/GHSA-2ww3-72rp-wpp4
- https://github.com/microsoft/semantic-kernel/pull/13478/changes#diff-88d3cacba2bfa84eef8f2aa171b34f9940338cbb784a3ffc49f5fe3af1b8943d
- https://github.com/microsoft/semantic-kernel/blob/main/dotnet/samples/Demos/CodeInterpreterPlugin/Program.cs#L61-L64
- https://github.com/advisories/GHSA-2ww3-72rp-wpp4
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