Python
CVE-2026-26030
CRITICAL
Severity by source
AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Primary rating from GitHub Advisory · only source for this CVE.
CVSS VectorGitHub Advisory
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Lifecycle Timeline
3DescriptionGitHub Advisory
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.
AnalysisAI
Remote code execution in Microsoft Semantic Kernel Python SDK before 1.39.4. Code injection in the AI orchestration framework. Patch available.
Technical ContextAI
CWE-94 code injection in Microsoft's AI orchestration SDK for building AI agents.
RemediationAI
Update to Semantic Kernel 1.39.4.
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Same weakness CWE-94 – Code Injection
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External POC / Exploit Code
Leaving vuln.today
GHSA-xjw9-4gw8-4rqx