CVE-2026-42861 Flowise: Mass Assignment in Variable Update Endpoint Allows Cross-Workspace Resource Reassignment

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 variable update endpoint of FlowiseAI. The endpoint allows authenticated users to modify server-controlled properties such as workspaceId,...

CVE-2026-42861

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 variable update endpoint of FlowiseAI. The endpoint allows authenticated users to modify server-controlled properties such as workspaceId,...

CVE-2026-42861

Summary: CVE-2026-42861 affects Flowise (pre-3.1.2) with a mass assignment flaw in the variable update endpoint. What’s vulnerable: the PUT /api/v1/variables/{variableId} endpoint allows authenticated users to modify server-controlled fields (workspaceId, createdDate, updatedDate) by submitting t...

CVE-2026-42861 Flowise: Mass Assignment in Variable Update Endpoint Allows Cross-Workspace Resource Reassignment

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 variable update endpoint of FlowiseAI. The endpoint allows authenticated users to modify server-controlled properties such as workspaceId,...

EUVD-2026-35103

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 variable update endpoint of FlowiseAI. The endpoint allows authenticated users to modify server-controlled properties such as workspaceId,...

CVE-2026-42861 Flowise: Mass Assignment in Variable Update Endpoint Allows Cross-Workspace Resource Reassignment

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 variable update endpoint of FlowiseAI. The endpoint allows authenticated users to modify server-controlled properties such as workspaceId,...

CVE-2026-46475: Improperly Controlled Modification of Dynamically-Determined Object Attributes

Flowise is a drag & drop user interface to build a customized large language model flow. Prior to version 3.1.2, assistant create and update mass-assignment allows cross-workspace assistant takeover. This issue has been patched in version 3.1.2...

CVE-2026-46477: Improperly Controlled Modification of Dynamically-Determined Object Attributes

Flowise is a drag & drop user interface to build a customized large language model flow. Prior to version 3.1.2, dataset create and update mass-assignment allows cross-workspace dataset takeover. This issue has been patched in version 3.1.2...

Flowise security vulnerabilities

Flowise is an open-source tool developed by FlowiseAI, designed for easily building LLM applications. Versions of Flowise prior to 3.1.2 contained security vulnerabilities. These vulnerabilities stemmed from issues with batch assignment during evaluation and creation processes, which could lead t...

Flowise security vulnerabilities

Flowise is an open-source tool developed by FlowiseAI, designed for easily building LLM applications. Versions of Flowise prior to 3.1.2 contained a security vulnerability, which stemmed from issues with batch assignment during dataset creation and updating. This vulnerability could lead to...

Flowise security vulnerabilities

Flowise is an open-source tool developed by FlowiseAI, designed for easily building LLM applications. Versions of Flowise prior to 3.1.2 contained a security vulnerability. This vulnerability stemmed from a batch assignment issue during the creation and updating of assistants, which could lead to...

Flowise Access Control Vulnerability

Flowise is an open-source tool developed by FlowiseAI, designed for easily building LLM applications. Versions of Flowise prior to 3.1.2 contained a access control vulnerability. This vulnerability stemmed from a lack of server-side verification and authorization checks at the tool’s update...

Flowise security vulnerabilities

Flowise is an open-source tool developed by FlowiseAI, designed for easily building LLM applications. Versions of Flowise prior to 3.1.2 contained security vulnerabilities. These vulnerabilities stemmed from issues with batch assignment during the creation and updating of CustomTemplates, which...

CVE-2026-46478: Improperly Controlled Modification of Dynamically-Determined Object Attributes

Flowise is a drag & drop user interface to build a customized large language model flow. Prior to version 3.1.2, DatasetRow create and update mass-assignment allows cross-workspace row takeover. This issue has been patched in version 3.1.2...

CVE-2026-42863: Improper Access Control

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,...

Flowise Access Control Vulnerability

Flowise is an open-source tool developed by FlowiseAI, designed for easily building LLM applications. Versions of Flowise prior to 3.1.2 contained a access control vulnerability. This vulnerability stemmed from insufficient server-side verification and authorization checks at the chat stream upda...

Flowise Access Control Vulnerability

Flowise is an open-source tool developed by FlowiseAI, designed for easily building LLM applications. Versions of Flowise prior to 3.1.2 contained a access control vulnerability. This vulnerability stemmed from a lack of server-side verification and authorization checks at the variable update...

CVE-2026-46480: Improperly Controlled Modification of Dynamically-Determined Object Attributes

Flowise is a drag & drop user interface to build a customized large language model flow. Prior to version 3.1.2, evaluator create and update mass-assignment allows cross-workspace evaluator takeover. This issue has been patched in version 3.1.2...

CVE-2026-46479: Improperly Controlled Modification of Dynamically-Determined Object Attributes

Flowise is a drag & drop user interface to build a customized large language model flow. Prior to version 3.1.2, evaluation create and update mass-assignment allows cross-workspace evaluation takeover. This issue has been patched in version 3.1.2...

Flowise security vulnerabilities

Flowise is an open-source tool developed by FlowiseAI, designed for easily building LLM applications. Versions of Flowise prior to 3.1.2 contained security vulnerabilities. These vulnerabilities stemmed from issues with batch assignment during the creation and updating of evaluators, which could...