{"cve":"CVE-2026-26030","nvd":{"published":"2026-02-19T17:24:50.487","modified":"2026-06-17T10:25:37.857","status":"Analyzed","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_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H","score":9.9},"cwes":["CWE-94"],"references":["https://github.com/microsoft/semantic-kernel/pull/13505","https://github.com/microsoft/semantic-kernel/releases/tag/python-1.39.4","https://github.com/microsoft/semantic-kernel/security/advisories/GHSA-xjw9-4gw8-4rqx"],"products":["microsoft:semantic_kernel"],"source":"nvd","synced_at":"2026-10-19T22:23:35.260773158+00:00"},"epss":{"cve":"CVE-2026-26030","score":0.03914,"percentile":0.90307,"date":"2026-11-01"},"kev":null,"osv":[{"id":"GHSA-xjw9-4gw8-4rqx","url":"https://osv.dev/vulnerability/GHSA-xjw9-4gw8-4rqx","summary":"Microsoft Semantic Kernel InMemoryVectorStore filter functionality vulnerable to remote code execution","modified":"2026-06-08T23:30:20.861750576Z","packages":[{"ecosystem":"PyPI","name":"semantic-kernel","purl":"pkg:pypi/semantic-kernel","ranges":["<1.39.4"],"fixed":["1.39.4"]}]},{"id":"PYSEC-2026-163","url":"https://osv.dev/vulnerability/PYSEC-2026-163","summary":"","modified":"2026-05-24T16:45:05.183432288Z","packages":[{"ecosystem":"PyPI","name":"semantic-kernel","purl":"pkg:pypi/semantic-kernel","ranges":["<1.39.4"],"fixed":["1.39.4"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}