CVE-2026-70475: Flowise Missing Authorization On Execution Update Vulnerability

HIGH
Advisory Identifier: GHSA-fm2f-4339-4p2f
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CWE-862
Published
Advisory Summary

CVE-2026-70475 is a HIGH missing authorization on execution update vulnerability (CWE-862: Missing Authorization) affecting Flowise libraries in the npm ecosystem. The issue involves missing authorization on execution update endpoint. Remediation is available by upgrading affected packages to version 3.1.3.

CVE-2026-70475 at a Glance

CVE Identifier CVE-2026-70475
GHSA Identifier GHSA-fm2f-4339-4p2f
Severity HIGH
CVSS v3.1 Base Score N/A
CWE Classification CWE-862: Missing Authorization
Affected Product Flowise
Package Ecosystem npm
Published Date
Last Updated

How to Fix CVE-2026-70475

To remediate this vulnerability, upgrade all affected Flowise dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

flowise fixed: 3.1.3 
npm install flowise@3.1.3
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

npm ls flowise

How to Check if You Are Affected

To determine whether your Node.js application is affected by CVE-2026-70475, inspect your project dependencies using npm:

npm ls flowise

Analyze the terminal output to locate any version of Flowise in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 3.1.3), your application is affected.

Note: The npm ls flowise command inspects dependencies declared in your package.json and lockfile; it does not perform automated runtime dynamic scanning.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-862: Missing Authorization, where the product does not perform an authorization check when an actor attempts to access a resource or perform an action. In Flowise, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

# 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 checkadvisory_1_execution_auth_bypass 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/EXECUTION_ID \ -H "Authorization: Bearer LOW_PRIV_API_KEY" \ -H "Content-Type: application/json" \ -d '{"state": "FINISHED", "data": "MANIPULATED"}' ```

CVE-2026-70475 Affected Flowise Versions

1 component(s)
Fixed Versions:
3.1.3
Product / Package Ecosystem Affected Versions Fixed Version
flowise
npm/flowise
npm
< 3.1.3
3.1.3

References

GitHub Advisory / Wiki ADVISORY
https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-fm2f-4339-4p2f
Flowise Source Repository REPOSITORY
https://github.com/FlowiseAI/Flowise/pull/6409
Security Fix Commit FIX COMMIT
https://github.com/FlowiseAI/Flowise/commit/96a9b23b5a103b362a0ee1368d04636755be1bed
Flowise Source Repository REPOSITORY
https://github.com/FlowiseAI/Flowise
Flowise Release RELEASE
https://github.com/FlowiseAI/Flowise/releases/tag/flowise@3.1.3

Frequently Asked Questions

What is CVE-2026-70475?
CVE-2026-70475 is a security vulnerability in Flowise involving Missing Authorization on Execution Update Endpoint under CWE-862: Missing Authorization.
Which Flowise versions are affected?
Affected versions include releases prior to 3.1.3 across affected packages: flowise.
What version fixes CVE-2026-70475?
Upgrading to 3.1.3 (or the latest patched release for your respective branch) resolves the vulnerability.
Is flowise affected?
Yes, flowise is affected in releases prior to 3.1.3. Upgrade your dependency to 3.1.3 or later.
What CWE is associated with CVE-2026-70475?
CVE-2026-70475 is classified under CWE-862: Missing Authorization (The product does not perform an authorization check when an actor attempts to access a resource or perform an action.).
How can I check npm dependencies for CVE-2026-70475?
Run the dependency tree command: 'npm ls flowise'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-fm2f-4339-4p2f",
  "modified" : "2026-08-04T19:18:47Z",
  "published" : "2026-08-04T19:18:47Z",
  "aliases" : [ "CVE-2026-70475" ],
  "summary" : "Flowise: Missing Authorization on Execution Update Endpoint",
  "details" : "# Flowise Security Audit Report\n**Date**: 2026-03-17\n**Researcher**: Dimpal Jadhav (jadhavdimpy@gmail.com)\n**GitHub**: https://github.com/Dimpyj1604\n**Target**: FlowiseAI/Flowise (latest main branch)\n**Version**: flowise-components@3.1.0\n\n### FINDING 1: Missing Authorization on Execution Update Endpoint\n**Severity**: HIGH (CVSS ~7.5)\n**Type**: CWE-862 (Missing Authorization)\n**File**: `packages/server/src/routes/executions/index.ts:11`\n\n**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.\n\n**Evidence**:\n```typescript\n// Line 7 - GET has permission check\nrouter.get('/', checkAnyPermission('executions:view'), executionController.getAllExecutions)\n\n// Line 11 - PUT has NO permission check\nrouter.put(['/', '/:id'], executionController.updateExecution)  // <-- MISSING checkAnyPermission\n\n// Line 14 - DELETE has permission checkadvisory_1_execution_auth_bypass\nrouter.delete('/:id', checkAnyPermission('executions:delete'), executionController.deleteExecutions)\n```\n\n**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.\n\n**Reproduction**:\n```bash\ncurl -X PUT https://TARGET/api/v1/executions/EXECUTION_ID \\\n  -H \"Authorization: Bearer LOW_PRIV_API_KEY\" \\\n  -H \"Content-Type: application/json\" \\\n  -d '{\"state\": \"FINISHED\", \"data\": \"MANIPULATED\"}'\n```",
  "severity" : [ {
    "type" : "CVSS_V4",
    "score" : "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "npm",
      "name" : "flowise"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "3.1.3"
      } ]
    } ],
    "database_specific" : {
      "last_known_affected_version_range" : "<= 3.1.2"
    }
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-fm2f-4339-4p2f"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/FlowiseAI/Flowise/pull/6409"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/FlowiseAI/Flowise/commit/96a9b23b5a103b362a0ee1368d04636755be1bed"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/FlowiseAI/Flowise"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/FlowiseAI/Flowise/releases/tag/flowise@3.1.3"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-862" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2026-08-04T19:18:47Z",
    "nvd_published_at" : null
  }
}