CVE-2026-46441: CWE-284: Improper Access Control in FlowiseAI Flowise
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 assistant update endpoint of FlowiseAI. The endpoint allows authenticated users to modify server-controlled properties such as workspaceId, createdDate, and updatedDate when updating an assistant resource. Due to missing server-side validation and authorization checks, an attacker can manipulate the workspaceId field and reassign assistants to arbitrary workspaces. This breaks tenant isolation in multi-workspace environments. This issue has been patched in version 3.1.2.
AI Analysis
Technical Summary
FlowiseAI Flowise before version 3.1.2 contains a mass assignment vulnerability in the assistant update endpoint. This endpoint fails to validate or authorize changes to sensitive server-controlled fields such as workspaceId, createdDate, and updatedDate. As a result, authenticated users with limited privileges can manipulate the workspaceId field to reassign assistants to workspaces they should not have access to, violating tenant isolation in environments with multiple workspaces. The vulnerability is tracked as CVE-2026-46441 with a CVSS 4.0 score of 7.6 (high severity). The flaw is addressed by patching to version 3.1.2.
Potential Impact
Exploitation of this vulnerability allows authenticated users to bypass intended access controls and reassign assistant resources to arbitrary workspaces. This breaks tenant isolation, potentially exposing or allowing unauthorized modification of data or workflows across workspace boundaries. There are no known exploits in the wild as of the published date. The impact is significant in multi-tenant or multi-workspace deployments where strict separation is required.
Mitigation Recommendations
A patch fixing this vulnerability is available in Flowise version 3.1.2. Users should upgrade to version 3.1.2 or later to remediate this issue. Since this is not a cloud service, remediation requires applying the vendor's update. Patch status is not explicitly stated beyond the version fix, so users should consult the vendor advisory for any additional guidance.
CVE-2026-46441: CWE-284: Improper Access Control in FlowiseAI Flowise
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 assistant update endpoint of FlowiseAI. The endpoint allows authenticated users to modify server-controlled properties such as workspaceId, createdDate, and updatedDate when updating an assistant resource. Due to missing server-side validation and authorization checks, an attacker can manipulate the workspaceId field and reassign assistants to arbitrary workspaces. This breaks tenant isolation in multi-workspace environments. This issue has been patched in version 3.1.2.
CVSS v4.0
Score 7.6high
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
FlowiseAI Flowise before version 3.1.2 contains a mass assignment vulnerability in the assistant update endpoint. This endpoint fails to validate or authorize changes to sensitive server-controlled fields such as workspaceId, createdDate, and updatedDate. As a result, authenticated users with limited privileges can manipulate the workspaceId field to reassign assistants to workspaces they should not have access to, violating tenant isolation in environments with multiple workspaces. The vulnerability is tracked as CVE-2026-46441 with a CVSS 4.0 score of 7.6 (high severity). The flaw is addressed by patching to version 3.1.2.
Potential Impact
Exploitation of this vulnerability allows authenticated users to bypass intended access controls and reassign assistant resources to arbitrary workspaces. This breaks tenant isolation, potentially exposing or allowing unauthorized modification of data or workflows across workspace boundaries. There are no known exploits in the wild as of the published date. The impact is significant in multi-tenant or multi-workspace deployments where strict separation is required.
Mitigation Recommendations
A patch fixing this vulnerability is available in Flowise version 3.1.2. Users should upgrade to version 3.1.2 or later to remediate this issue. Since this is not a cloud service, remediation requires applying the vendor's update. Patch status is not explicitly stated beyond the version fix, so users should consult the vendor advisory for any additional guidance.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitHub_M
- Date Reserved
- 2026-05-13T22:18:22.831Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a26e468e29bf47b501e3137
Added to database: 6/8/2026, 3:48:56 PM
Last enriched: 6/8/2026, 4:05:02 PM
Last updated: 6/9/2026, 5:05:29 AM
Views: 4
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