{"affected":[{"defaultStatus":"affected","ecosystem":"github","packageName":"marimo-team/marimo","product":"marimo","source":"CNA: VulnCheck","vendor":"marimo-team","versions":[{"lessThan":"0.23.15","status":"affected","version":"0","versionType":"semver"}]}],"cveId":"CVE-2026-75149","cwes":["CWE-94"],"description":"marimo before 0.23.15 contains a code injection vulnerability in the notebook configuration handler that allows attackers to execute arbitrary commands by supplying a crafted MCP server entry with an attacker-controlled command value embedded in a notebook. When the notebook is opened in edit mode, marimo launches the specified command as a local subprocess before any notebook cell is executed, requiring no authentication or cell execution to trigger the vulnerability.","epss":{"date":"2026-11-08","percentile":0.61836,"score":0.00962},"exploits":[],"kev":null,"metrics":[{"score":8.7,"severity":"high","source":"CNA: VulnCheck","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","version":"4.0"},{"score":8.8,"severity":"high","source":"CNA: VulnCheck","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","version":"3.1"}],"modifiedAt":1794146930506,"publishedAt":1787161726525,"references":[{"source":"CNA: VulnCheck","tags":["release-notes"],"url":"https://github.com/marimo-team/marimo/releases/tag/0.23.15"},{"source":"CNA: VulnCheck","tags":["issue-tracking","patch"],"url":"https://github.com/marimo-team/marimo/pull/10281"},{"source":"CNA: VulnCheck","tags":["patch"],"url":"https://github.com/marimo-team/marimo/commit/1a21bd71e258438d2511136b5edacc94c08855f4"},{"source":"CNA: VulnCheck","tags":["third-party-advisory"],"url":"https://www.vulncheck.com/advisories/marimo-code-injection-via-mcp-server-configuration"}],"remediation":[{"kind":"fix","source":"CNA: VulnCheck","text":"The reporting source identifies this reference as a patch. Check the advisory for affected versions and supported release branches.","url":"https://github.com/marimo-team/marimo/pull/10281"},{"kind":"fix","source":"CNA: VulnCheck","text":"The reporting source identifies this reference as a patch. Check the advisory for affected versions and supported release branches.","url":"https://github.com/marimo-team/marimo/commit/1a21bd71e258438d2511136b5edacc94c08855f4"}],"revision":"6519044185b11684371a6699f9a34d11b756bd815e0de0d6a3cb1216952c0dc2","sources":[{"modifiedAt":1794146930506,"name":"CNA: VulnCheck","retrievedAt":1794151352036,"url":"https://www.cve.org/CVERecord?id=CVE-2026-75149"},{"modifiedAt":null,"name":"FIRST EPSS","retrievedAt":1794151368449,"url":"https://api.first.org/data/v1/epss?cve=CVE-2026-75149"}],"ssvc":{"assessedAt":1787341254508,"automatable":"no","exploitation":"none","source":"ADP: CISA-ADP","technicalImpact":"total"},"status":"published","title":"marimo < 0.23.15 Code Injection via MCP Server Configuration","updatedAt":1794151368449}