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.
History

Fri, 20 Feb 2026 10:15:00 +0000

Type Values Removed Values Added
First Time appeared Microsoft
Microsoft semantic-kernel
Vendors & Products Microsoft
Microsoft semantic-kernel

Fri, 20 Feb 2026 01:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Thu, 19 Feb 2026 16:30:00 +0000

Type Values Removed Values Added
Description 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.
Title Microsoft Semantic Kernel InMemoryVectorStore filter functionality vulnerable to remote code execution
Weaknesses CWE-94
References
Metrics cvssV3_1

{'score': 10, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H'}


cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published: 2026-02-19T16:00:55.623Z

Updated: 2026-02-20T04:55:49.082Z

Reserved: 2026-02-09T21:36:29.555Z

Link: CVE-2026-26030

cve-icon Vulnrichment

Updated: 2026-02-19T20:57:43.989Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-02-19T17:24:50.487

Modified: 2026-02-20T13:49:47.623

Link: CVE-2026-26030

cve-icon Redhat

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