Vulnerability 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.
CVSS Score
CRITICAL
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Microsoft | Semantic Kernel | < 1.39.4 |
Related Weaknesses (CWE)
References
- https://github.com/microsoft/semantic-kernel/pull/13505Issue TrackingPatch
- https://github.com/microsoft/semantic-kernel/releases/tag/python-1.39.4Release Notes
- https://github.com/microsoft/semantic-kernel/security/advisories/GHSA-xjw9-4gw8-PatchVendor Advisory
FAQ
What is CVE-2026-26030?
CVE-2026-26030 is a vulnerability with a CVSS score of 9.9 (CRITICAL). 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 ...
How severe is CVE-2026-26030?
CVE-2026-26030 has been rated CRITICAL with a CVSS base score of 9.9/10. This is considered a critical vulnerability requiring immediate attention.
Is there a patch for CVE-2026-26030?
Check the references section above for vendor advisories and patch information. Affected products include: Microsoft Semantic Kernel.