CVE-2026-54386

説明

marimo before 0.23.9 contains a reflected cross-site scripting vulnerability in the notebook page that allows unauthenticated attackers to inject arbitrary JavaScript by exploiting improper escaping of single quotes in the file query parameter reflected into an inline JavaScript string literal. Attackers can craft a malicious link with a payload beginning with __new__ to bypass the 404 check and inject JavaScript into the page, which executes without Content-Security-Policy restrictions in the origin of a victim's marimo server.

参照情報

NVDが列挙した参照URLを、リンクのホスト・パターンに対する機械的な一致でグループ化したもの。ラベルはリンクの種別のみを示します。

• パッチ https://github.com/marimo-team/marimo/commit/fdd55c8cf6260ae23bb411dc9d9269def5cf75d6
• 参照 https://github.com/marimo-team/marimo/pull/9789
• パッチ https://github.com/marimo-team/marimo/releases/tag/0.23.9
• ベンダー勧告 https://www.vulncheck.com/advisories/marimo-xss-via-file-query-parameter-in-assets-py