{"id":"CVE-2026-75149","aliases":[],"url":"https://o3.security/vulnerability/CVE-2026-75149","summary":"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…","details":"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.","published":"2026-08-19T18:17:26.080","modified":"2026-08-19T18:17:26.080","cvss":{"score":8.8,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H"},"epss":null,"cisaKev":null,"exploitsKnown":null,"affectedPackages":[],"fix":{"url":"https://github.com/marimo-team/marimo/commit/1a21bd71e258438d2511136b5edacc94c08855f4","label":"marimo-team/marimo@1a21bd7"},"references":[{"type":"WEB","url":"https://github.com/marimo-team/marimo/commit/1a21bd71e258438d2511136b5edacc94c08855f4"},{"type":"WEB","url":"https://github.com/marimo-team/marimo/pull/10281"},{"type":"WEB","url":"https://github.com/marimo-team/marimo/releases/tag/0.23.15"},{"type":"WEB","url":"https://www.vulncheck.com/advisories/marimo-code-injection-via-mcp-server-configuration"}],"provenance":{"sources":["OSV.dev","NVD","FIRST.org (EPSS)"],"lastVerified":"2026-08-19T18:17:26.080"}}