CVE-2026-46444: FlowiseAI Vector Store No Permission Checks Vulnerability

HIGH
Advisory Identifier: GHSA-hmg2-jjjx-jcp2
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CVSS 8.8
CWE-862
Published
Advisory Summary

CVE-2026-46444 is a HIGH (CVSS 8.8) vector store no permission checks vulnerability (CWE-862: Missing Authorization) affecting FlowiseAI libraries in the npm ecosystem. The issue involves vector store no permission checks. Remediation is available by upgrading affected packages to version 3.1.2.

CVE-2026-46444 at a Glance

CVE Identifier CVE-2026-46444
GHSA Identifier GHSA-hmg2-jjjx-jcp2
Severity HIGH
CVSS v3.1 Base Score 8.8
CWE Classification CWE-862: Missing Authorization
Affected Product FlowiseAI
Package Ecosystem npm
Published Date
Last Updated

Security Impact

CVSS: 8.8

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H).

Attack Vector Network (AV:N)
Attack Complexity Low (AC:L)
Privileges Required Low (PR:L)
User Interaction None (UI:N)
Scope Unchanged (S:U)
Confidentiality High (C:H)
Integrity High (I:H)
Availability High (A:H)

How to Fix CVE-2026-46444

To remediate this vulnerability, upgrade all affected FlowiseAI 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: 3.1.2 
npm install flowise@3.1.2
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-2026-46444, inspect your project dependencies using npm:

npm ls flowise

Analyze the terminal output to locate any version of FlowiseAI in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 3.1.2), 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 FlowiseAI, 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

### FINDING 4: OpenAI Assistants Vector Store - No Auth on CRUD Operations **Severity**: HIGH (CVSS ~8.1) **Type**: CWE-306 (Missing Authentication for Critical Function) **File**: `packages/server/src/routes/openai-assistants-vector-store/index.ts` **Description**: ALL CRUD endpoints for OpenAI Assistants Vector Store have no authentication middleware AND the route path `/api/v1/openai-assistants-vector-store` is NOT in `WHITELIST_URLS`. However, it is also NOT protected by the main auth middleware when accessed via API key — the route requires API key auth (not whitelisted), but NO permission checks exist on any operation. The real issue is that the routes have no `checkAnyPermission()` middleware, meaning any authenticated user regardless of role can: - Create vector stores - Upload files to vector stores - Delete vector stores and files - Modify any vector store **Evidence**: ```typescript // No permission middleware on any route router.post('/', controller.createAssistantVectorStore) // No permission check router.put(['/', '/:id'], controller.updateAssistantVectorStore) // No permission check router.delete(['/', '/:id'], controller.deleteAssistantVectorStore) // No permission check router.post('/:id', getMulterStorage().array('files'), controller.uploadFilesToAssistantVectorStore) // No permission check ``` **Impact**: Any authenticated user can manipulate OpenAI vector stores, upload malicious files, delete data, or exfiltrate stored documents regardless of their assigned permissions.

CVE-2026-46444 Affected FlowiseAI Versions

1 component(s)
Fixed Versions:
3.1.2
Product / Package Ecosystem Affected Versions Fixed Version
flowise
npm/flowise
npm
< 3.1.2
3.1.2

References

GitHub Advisory / Wiki ADVISORY
https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-hmg2-jjjx-jcp2
NVD — CVE-2026-46444 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-46444
FlowiseAI Source Repository REPOSITORY
https://github.com/FlowiseAI/Flowise
FlowiseAI Release RELEASE
https://github.com/FlowiseAI/Flowise/releases/tag/flowise%403.1.2

Frequently Asked Questions

What is CVE-2026-46444?
CVE-2026-46444 is a security vulnerability in FlowiseAI involving Vector Store No Permission Checks under CWE-862: Missing Authorization.
Which FlowiseAI versions are affected?
Affected versions include releases prior to 3.1.2 across affected packages: flowise.
What version fixes CVE-2026-46444?
Upgrading to 3.1.2 (or the latest patched release for your respective branch) resolves the vulnerability.
Is flowise affected?
Yes, flowise is affected in releases prior to 3.1.2. Upgrade your dependency to 3.1.2 or later.
What is the CVSS score of CVE-2026-46444?
CVE-2026-46444 has a CVSS v3.1 base score of 8.8 (HIGH) with vector string CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
What CWE is associated with CVE-2026-46444?
CVE-2026-46444 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-2026-46444?
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-hmg2-jjjx-jcp2",
  "modified" : "2026-06-11T14:08:34Z",
  "published" : "2026-05-14T16:19:23Z",
  "aliases" : [ "CVE-2026-46444" ],
  "summary" : "FlowiseAI: Vector Store No Permission Checks",
  "details" : "### FINDING 4: OpenAI Assistants Vector Store - No Auth on CRUD Operations\n**Severity**: HIGH (CVSS ~8.1)\n**Type**: CWE-306 (Missing Authentication for Critical Function)\n**File**: `packages/server/src/routes/openai-assistants-vector-store/index.ts`\n\n**Description**: ALL CRUD endpoints for OpenAI Assistants Vector Store have no authentication middleware AND the route path `/api/v1/openai-assistants-vector-store` is NOT in `WHITELIST_URLS`. However, it is also NOT protected by the main auth middleware when accessed via API key — the route requires API key auth (not whitelisted), but NO permission checks exist on any operation.\n\nThe real issue is that the routes have no `checkAnyPermission()` middleware, meaning any authenticated user regardless of role can:\n- Create vector stores\n- Upload files to vector stores\n- Delete vector stores and files\n- Modify any vector store\n\n**Evidence**:\n```typescript\n// No permission middleware on any route\nrouter.post('/', controller.createAssistantVectorStore)          // No permission check\nrouter.put(['/', '/:id'], controller.updateAssistantVectorStore) // No permission check\nrouter.delete(['/', '/:id'], controller.deleteAssistantVectorStore) // No permission check\nrouter.post('/:id', getMulterStorage().array('files'), controller.uploadFilesToAssistantVectorStore) // No permission check\n```\n\n**Impact**: Any authenticated user can manipulate OpenAI vector stores, upload malicious files, delete data, or exfiltrate stored documents regardless of their assigned permissions.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
  }, {
    "type" : "CVSS_V4",
    "score" : "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "npm",
      "name" : "flowise"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "3.1.2"
      } ]
    } ],
    "database_specific" : {
      "last_known_affected_version_range" : "<= 3.1.1"
    }
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-hmg2-jjjx-jcp2"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-46444"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/FlowiseAI/Flowise"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/FlowiseAI/Flowise/releases/tag/flowise%403.1.2"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-862" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2026-05-14T16:19:23Z",
    "nvd_published_at" : "2026-06-08T16:16:41Z"
  }
}