Incorrect authorization in Flowise - CVE-2026-56268
Published: May 18, 2026 / Updated: September 14, 2026
Vulnerability identifier: #VU131701
CSH Severity: Low
CVSS v4: 5.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-56268
CWE-ID: CWE-863
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to disclose sensitive information across workspace boundaries.
The vulnerability exists due to improper access control in the /api/v1/chatflows/apikey/:apikey endpoint when handling requests without the keyonly query parameter. A remote user can send a request with a valid API key to disclose sensitive information across workspace boundaries.
The response can include full chatflow objects for unprotected chatflows from other workspaces, including flowData, chatbotConfig, apiConfig, text-to-speech and speech-to-text configuration, analytics configuration, and credential IDs.
Affected software
Flowise
How to mitigate CVE-2026-56268
Install security update from vendor's website.
Flowise - update to 3.1.2