CVE-2026-42863 Details
Description
Flowise is a drag & drop user interface to build a customized large language model flow. Prior to version 3.1.2, a mass assignment vulnerability exists in the chatflow update endpoint of FlowiseAI. The endpoint allows clients to modify server-controlled properties such as deployed, isPublic, workspaceId, createdDate, and updatedDate when updating a chatflow object. Due to missing server-side validation and authorization checks, an authenticated user can manipulate internal attributes of a chatflow and reassign it to another workspace. This allows cross-workspace resource reassignment and unauthorized modification of deployment and visibility settings. This issue has been patched in version 3.1.2.
A mass assignment vulnerability has been identified in Flowise versions prior to 3.1.2, specifically within the chatflow update endpoint. This vulnerability allows authenticated users to manipulate server-controlled properties, such as deployment status, visibility, and workspace assignment, without proper validation or authorization. As a result, users can unauthorizedly modify chatflow attributes and reassign them to different workspaces, disrupting workflow management and tenant isolation.
Users should update to Flowise version 3.1.2 or later, where this vulnerability has been patched.
Metrics
CVSS 4.0 Severity and Vector Strings:
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Jun 8, 2026References to Advisories, Solutions, and Tools
By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.
| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-5wxp-qjgq-fx6m | CISA-ADP | ExploitVendor Advisory |
| https://github.com/FlowiseAI/Flowise/releases/tag/flowise%403.1.2 | [email protected] | ProductRelease Notes |
| https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-5wxp-qjgq-fx6m | [email protected] | ExploitVendor Advisory |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-284 | Improper Access Control | [email protected] |
| CWE-639 | Authorization Bypass Through User-Controlled Key | [email protected] |
| CWE-915 | Improperly Controlled Modification of Dynamically-Determined Object Attributes | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| flowiseai flowise | < 3.1.2 |
CPE
Remediation
| |
Change History
6 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jul 23, 2026 | CVE Translated | [email protected] |
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Jun 11, 2026 | Initial Analysis | [email protected] |
| Jun 8, 2026 | CVE Modified | CISA-ADP |
| Jun 8, 2026 | New CVE Received | [email protected] |