Authorization bypass through user-controlled key in Flowise - CVE-2026-90534
Published: August 31, 2026 / Updated: September 14, 2026
Vulnerability details
The vulnerability allows a remote user to disclose sensitive information from third-party resources across workspace boundaries.
The vulnerability exists due to authorization bypass through a user-controlled key in the node-load-method endpoint and credential resolution logic when invoking component load methods with an attacker-supplied credential ID. A remote user can send a specially crafted request using a credential ID from another workspace to disclose sensitive information from third-party resources across workspace boundaries.
The issue affects server-side use of credentials from a different workspace and can return provider metadata such as Google Drive files, Google Sheets spreadsheets, or AWS DynamoDB tables without exposing the raw credential secret.