CVE-2026-26030
Last modified
CVE-2026-26030 is a critical-severity vulnerability rated 9.9/10 on the CVSS scale. 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`. EPSS estimates a 2.91% chance of exploitation in the next 30 days.
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.
Metrics
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Microsoft | Semantic Kernel | < 1.39.4 |
References
- https://github.com/microsoft/semantic-kernel/pull/13505Issue Tracking, Patch
- https://github.com/microsoft/semantic-kernel/security/advisories/GHSA-xjw9-4gw8-4rqxPatch, Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Analyzed
Frequently Asked Questions
What is CVE-2026-26030?
How severe is CVE-2026-26030?
How do I fix CVE-2026-26030?
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2026
- CVE-2026-26025free5GC SMF provides Session Management Function for free5GC…7.5
- CVE-2026-26026GLPI is a free asset and IT management software package. Fro…7.2
- CVE-2026-26027GLPI is a free asset and IT management software package. Fro…6.1
- CVE-2026-26028CryptPad is an end-to-end encrypted collaborative office sui…6.1
- CVE-2026-26029sf-mcp-server is an implementation of Salesforce MCP server …7.5
- CVE-2026-2603A flaw was found in Keycloak. A remote attacker could bypass…8.1
- CVE-2026-26031Frappe Learning Management System (LMS) is a learning system…5.3
- CVE-2026-26032The PackagerResolver of Apache Ivy is able to download onlin…5.4
- CVE-2026-26033UPS Multi-UPS Management Console (MUMC) version 01.06.0001 (…8.4
- CVE-2026-26034UPS Multi-UPS Management Console (MUMC) version 01.06.0001 (…8.5
- CVE-2026-26035An Improper Authentication vulnerability [CWE-287] vulnerabi…9.8
- CVE-2026-26036Rejected reason: Not used
Are you affected by CVE-2026-26030?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST