{"answers":{"affected":"3 open source packages ship an affected version, including semantic-kernel. It affects 1 product.","exploited":"There is no known exploitation of CVE-2026-26030 in the wild and no public exploit code.","fix":"Upgrade semantic-kernel to 1.39.4 or later.","what":"CVE-2026-26030 is a critical vulnerability in microsoft semantic-kernel, published on 19 Feb 2026."},"fix_prompt":"Check this codebase for CVE-2026-26030 and fix it if it is affected.\n\nWhat it is: CVE-2026-26030 is a critical vulnerability in microsoft semantic-kernel, published on 19 Feb 2026. \nExploitation: There is no known exploitation of CVE-2026-26030 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- semantic-kernel (PyPI): affected all versions; fixed in 1.39.4\n- semantic-kernel (PyPI): affected all versions; fixed in 1.39.4\n- semantic-kernel (PyPI): affected all versions; fixed in 1.39.4\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2026-26030/ (Markdown: https://insights.sbomify.com/CVE-2026-26030/index.md)","id":"CVE-2026-26030","markdown":"https://insights.sbomify.com/CVE-2026-26030/index.md","name":"CVE-2026-26030","record":{"aliases":["GHSA-xjw9-4gw8-4rqx","PYSEC-2026-163"],"analysis":null,"analysis_generated_by":null,"assigner":"GitHub_M","cpe":[{"product":"semantic_kernel","vendor":"microsoft"}],"cvss":{"score":10,"severity":"critical","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-94","name":"Improper Control of Generation of Code"}],"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.","ecosystems":["PyPI"],"exploits":{"exploitdb":0,"first_seen":"2026-02-24","github_poc":2,"max_poc_stars":1,"metasploit":0,"nuclei":0,"refs":[{"date":"2026-02-24T16:50:25Z","kind":"github_poc","ref":"https://github.com/mbanyamer/CVE-2026-26030-Microsoft-Semantic-Kernel-1.39.4-RCE","stars":1,"title":null},{"date":"2026-06-22T11:28:10Z","kind":"github_poc","ref":"https://github.com/InertFluid/sk-cve-2026-26030-lab","stars":1,"title":"Ethical, network-isolated Docker lab reproducing CVE-2026-26030 — Semantic Kernel in-memory vector store filter eval() RCE (patched in 1.39.4)"}],"tier":"poc_unverified"},"has_fix":true,"headline":"Microsoft Semantic Kernel InMemoryVectorStore filter functionality vulnerable to remote code execution","id":"CVE-2026-26030","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"PyPI","product":null,"products":[],"type":null,"year":"2026"},"n_packages":3,"n_references":3,"next":{"headline":"Frappe LMS affected by unauthorised user was able to access the full list of batch enrolled students","id":"CVE-2026-26031"},"packages":[{"ecosystem":"PyPI","fixed":["1.39.4"],"introduced":["0"],"last_affected":[],"package":"semantic-kernel","purl":null,"source":"GHSA-xjw9-4gw8-4rqx"},{"ecosystem":"PyPI","fixed":["1.39.4"],"introduced":["0"],"last_affected":[],"package":"semantic-kernel","purl":"pkg:pypi/semantic-kernel","source":"GHSA-xjw9-4gw8-4rqx"},{"ecosystem":"PyPI","fixed":["1.39.4"],"introduced":["0"],"last_affected":[],"package":"semantic-kernel","purl":"pkg:pypi/semantic-kernel","source":"PYSEC-2026-163"}],"prev":{"headline":"sf-mcp-server has a Command Injection in query_records tool due to unsafe use of child_process.exec","id":"CVE-2026-26029"},"products":["semantic-kernel"],"published":"2026-02-19","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"GitHub Advisory Database","prefix":"GHSA"},{"class":"attribution","licence":"CC BY 4.0","name":"PyPA Advisory Database","prefix":"PYSEC"},{"class":"attribution","licence":"US public information, NVD API terms","name":"NVD"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"},{"class":"open","licence":"CC0","name":"PoC-in-GitHub"}],"ssvc":{"automatable":"no","exploitation":"none","technical_impact":"total"},"state":"PUBLISHED","updated":"2026-02-26","vendors":["microsoft"]},"summary":null,"url":"https://insights.sbomify.com/CVE-2026-26030/"}