VULNERABILITY INTELLIGENCE

CVE-2026-26030

CVSS score9.9 CRITICAL
EPSS probability3.91%
CISA KEVNot currently listed
Published2026-02-19
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

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.

Weakness classification

  • security-advisories@github.com: CWE-94

Primary references