{"id":"CVE-2026-26030","state":"PUBLISHED","title":"Microsoft Semantic Kernel InMemoryVectorStore filter functionality vulnerable to remote code execution","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.","publishedAt":"2026-02-19T16:00:55.623Z","updatedAt":"2026-02-26T14:44:14.276Z","severity":{"score":10,"label":"Critical","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H","source":"GitHub_M"},"assigner":"GitHub_M","products":["microsoft semantic-kernel"],"affected":[{"vendor":"microsoft","product":"semantic-kernel","versions":[{"version":"< 1.39.4","status":"affected"}]}],"references":["https://github.com/microsoft/semantic-kernel/security/advisories/GHSA-xjw9-4gw8-4rqx","https://github.com/microsoft/semantic-kernel/pull/13505","https://github.com/microsoft/semantic-kernel/releases/tag/python-1.39.4"],"weaknesses":["CWE-94"],"ingestedAt":"2026-10-29T20:11:21.040Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/26xxx/CVE-2026-26030.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-26030","state":"PUBLISHED","datePublished":"2026-02-19T16:00:55.623Z","dateUpdated":"2026-02-26T14:44:14.276Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-02-09T21:36:29.555Z"},"containers":{"cna":{"title":"Microsoft Semantic Kernel InMemoryVectorStore filter functionality vulnerable to remote code execution","descriptions":[{"lang":"en","value":"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."}],"affected":[{"vendor":"microsoft","product":"semantic-kernel","versions":[{"version":"< 1.39.4","status":"affected"}]}],"references":[{"url":"https://github.com/microsoft/semantic-kernel/security/advisories/GHSA-xjw9-4gw8-4rqx","name":"https://github.com/microsoft/semantic-kernel/security/advisories/GHSA-xjw9-4gw8-4rqx","tags":["x_refsource_CONFIRM"]},{"url":"https://github.com/microsoft/semantic-kernel/pull/13505","name":"https://github.com/microsoft/semantic-kernel/pull/13505","tags":["x_refsource_MISC"]},{"url":"https://github.com/microsoft/semantic-kernel/releases/tag/python-1.39.4","name":"https://github.com/microsoft/semantic-kernel/releases/tag/python-1.39.4","tags":["x_refsource_MISC"]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":10,"baseSeverity":"CRITICAL","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"LOW","scope":"CHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H","version":"3.1"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-94","lang":"en","description":"CWE-94: Improper Control of Generation of Code ('Code Injection')","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2026-02-19T16:00:55.623Z"},"source":{"advisory":"GHSA-xjw9-4gw8-4rqx","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"id":"CVE-2026-26030","role":"CISA Coordinator","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"total"}],"version":"2.0.3","timestamp":"2026-02-20T04:55:50.393336Z"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-02-26T14:44:14.276Z"}}]}}}