Reference implementation Data compiled from public sources as of 2026-10-26. Not an assessment, certification or recommendation. Confirm current status with the vendor and the issuing body.
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CVEs / CVE-2026-25592

Agent framework

CVE-2026-25592

Critical · CVSS 3.1 9.9 Path traversal

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.

Official record (CVE.org) NVD Export JSON Report a wrong listing

Affected products · 1

ProductVersions affectedFixed in
Microsoft: Semantic Kernel not stated by CPE —

Versions as NVD's CPE configuration states them; "—" means the record gives no fixed version, not that none exists. Check the vendor's advisory in the references.

In this registry

References · 3

The official record's references, as NVD lists them, minus any tagged Exploit. Nothing here is an exploit or a proof of concept.

Description, scores, versions and references are the official CVE record's own, retrieved 2026-10-25 from NVD. Category, attack surface and cross-links are this registry's classification and can be wrong — use the button above. Not a severity assessment for your deployment.