{"data":{"id":"6096387e-31d3-4dc5-9bdf-70f30efebfd3","title":"GHSA-xjw9-4gw8-4rqx: Microsoft Semantic Kernel InMemoryVectorStore filter functionality vulnerable to remote code execution","summary":"Microsoft Semantic Kernel Python SDK contains a remote code execution vulnerability in the InMemoryVectorStore filter functionality. The issue is tracked as GHSA-xjw9-4gw8-4rqx.","solution":"Fixed in python-1.39.4. Users should upgrade to this version or higher. Workaround: avoid using InMemoryVectorStore for production scenarios.","labels":["security"],"sourceUrl":"https://github.com/advisories/GHSA-xjw9-4gw8-4rqx","publishedAt":"2026-02-19T19:34:14.000Z","cveId":"CVE-2026-26030","cweIds":null,"cvssScore":null,"cvssSeverity":"critical","severity":"critical","attackType":["other"],"issueType":"vulnerability","affectedPackages":["semantic-kernel@< 1.39.4 (fixed: 1.39.4)"],"affectedPackageNames":["semantic-kernel"],"affectedPackageRefs":["pypi:semantic-kernel"],"affectedVendors":["Microsoft"],"affectedVendorsRaw":["Microsoft Semantic Kernel","Semantic Kernel Python SDK","InMemoryVectorStore"],"classifierModel":"claude-haiku-5-5","classifierPromptVersion":"v4","summaryPromptVersion":"v2","headline":null,"headlinePromptVersion":null,"cvssVector":null,"attackVector":null,"attackComplexity":null,"privilegesRequired":null,"userInteraction":null,"exploitMaturity":"unknown","epssScore":0.03914,"epssCheckedAt":"2026-11-04T06:10:15.563Z","kevDateAdded":null,"advisoryAliases":["GHSA-xjw9-4gw8-4rqx"],"affectedPackagesSource":null,"affectedPackagesCheckedAt":null,"patchAvailable":null,"disclosureDate":null,"fixReleasedAt":"2026-02-10T10:09:47.014Z","daysToFix":-9,"fixCheckedAt":"2026-10-29T21:40:49.489Z","capecIds":null,"crossRefCount":1,"attackSophistication":"moderate","impactType":["confidentiality","integrity","availability"],"aiComponentTargeted":"rag","llmSpecific":false,"classifierConfidence":0.95,"researchCategory":null,"atlasIds":null,"fixes":[{"ecosystem":"pypi","name":"semantic-kernel","fixedVersion":"1.39.4","matchedVersion":"1.39.4","fixReleasedAt":"2026-02-10T10:09:47.014Z","daysToFix":-9,"match":"ecosystem","source":"tracked","status":"found","checkedAt":"2026-10-29T21:40:49.341Z"}]}}