Microsoft Semantic Kernel InMemoryVectorStore filter functionality vulnerable to remote code execution_CVE-2026-26030

{
    "lastseen": "",
    "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.",
    "published": "2026-02-19T16:00:55.623Z",
    "modified": "2026-02-19T16:00:55.623Z",
    "type": "cve",
    "title": "Microsoft Semantic Kernel InMemoryVectorStore filter functionality vulnerable to remote code execution",
    "source": "GitHub_M",
    "references": "https://github.com/microsoft/semantic-kernel/security/advisories/GHSA-xjw9-4gw8-4rqx\nhttps://github.com/microsoft/semantic-kernel/pull/13505\nhttps://github.com/microsoft/semantic-kernel/releases/tag/python-1.39.4",
    "id": "CVE-2026-26030",
    "bulletinFamily": "",
    "cwe": [
        "CWE-94"
    ],
    "cvelist": null,
    "sourceData": "microsoft semantic-kernel < 1.39.4",
    "sourceHref": "",
    "cvss": {
        "score": 10,
        "severity": "CRITICAL",
        "vector": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H",
        "version": "3.1"
    },
    "cvss2": [],
    "cvss3": {
        "version": "",
        "vectorString": "",
        "baseScore": 0,
        "baseSeverity": "",
        "attackVector": "",
        "attackComplexity": "",
        "privilegesRequired": "",
        "userInteraction": "",
        "scope": "",
        "confidentialityImpact": "",
        "integrityImpact": "",
        "availabilityImpact": "",
        "cvssV3": {
            "version": "",
            "vectorString": "",
            "baseScore": 0,
            "baseSeverity": "",
            "attackVector": "",
            "attackComplexity": "",
            "privilegesRequired": "",
            "userInteraction": "",
            "scope": "",
            "confidentialityImpact": "",
            "integrityImpact": "",
            "availabilityImpact": ""
        }
    },
    "href": "",
    "category_name": "CVE",
    "post_link": "",
    "product": "semantic-kernel",
    "version": "< 1.39.4",
    "vendor": "microsoft",
    "ai_description": "Remote code execution vulnerability in Microsoft Semantic Kernel's InMemoryVectorStore filter functionality",
    "ai_severity": "Critical",
    "ai_vendor": "Microsoft",
    "ai_product": "Semantic Kernel",
    "ai_version": "< 1.39.4",
    "ai_score": 10
}