Insufficient Verification of Data Authenticity

Overview marimo is an A library for making reactive notebooks and apps Affected versions of this package are vulnerable to Insufficient Verification of Data Authenticity via sanitizepyprojectdict in the PEP-723 script metadata handling path. An attacker can exfiltrate an operator’s API key by...

CVE-2026-67618

The vulnerability CVE-2026-67618 affects marimo before version 0.23.15. It stems from insufficient sanitization in sanitize_pyproject_dict, allowing a notebook author to inject a malicious base_url via PEP-723 inline script metadata. The attacker-controlled base_url is merged into session configu...

CVE-2026-67618: Insufficient Verification of Data Authenticity

marimo before 0.23.15 contains a configuration injection vulnerability that allows notebook authors to exfiltrate operator API keys by embedding a malicious baseurl in PEP-723 inline script metadata, which is merged into session configuration with higher precedence than the operator's own setting...