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GHSA-hmg2-jjjx-jcp2 CVE-2026-46444

FlowiseAI: Vector Store No Permission Checks

High npm
Severity
0.0 / 10
High · CVSS 4.0
Exploit chance (EPSS)
0.33%
Chance of exploitation in the next 30 days. Higher than 25.87% of scored vulnerabilities.
Known exploited
No
Not in CISA's catalog
Weakness
CWE-862 Missing Authorization
Fix
3.1.2
Upgrade flowise to this version or later

Description

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:

// 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.

Affected versions

npm

PackageVulnerableFixed in
flowise
< 3.1.2
3.1.2

How to fix

Move to the fixed version or later with your package manager, update the lockfile, and run your tests. If the package only arrives through another dependency, upgrade that dependency first. If none of its releases pulls a fixed version yet, force the version with your package manager's override.

flowise npm → 3.1.2

npm
npm install flowise@3.1.2
yarn
yarn add flowise@3.1.2
pnpm
pnpm add flowise@3.1.2

Severity breakdown

CVSS 4.0 0.0

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

Attack vector
Network
Attack complexity
Low
Attack requirements
None
Privileges required
Low
User interaction
None
Confidentiality (vulnerable system)
High
Integrity (vulnerable system)
High
Availability (vulnerable system)
High
Confidentiality (subsequent systems)
None
Integrity (subsequent systems)
None
Availability (subsequent systems)
None

CVSS 3.1 8.8

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack vector
Network
Attack complexity
Low
Privileges required
Low
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

Weakness

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 to prevent it
  • Architecture and Design: Divide the product into anonymous, normal, privileged, and administrative areas. Reduce the attack surface by carefully mapping roles with data and functionality. Use role-based access control (RBAC) [REF-229] to enforce the roles at the appropriate boundaries. Note that this approach may not protect against horizontal authorization, i.e., it will not protect a user from attacking others with the same role.
  • Architecture and Design: Ensure that access control checks are performed related to the business logic. These checks may be different than the access control checks that are applied to more generic resources such as files, connections, processes, memory, and database records. For example, a database may restrict access for medical records to a specific database user, but each record might only be intended to be accessible to the patient and the patient's doctor [REF-7].
  • Architecture and Design: Use a vetted library or framework that does not allow this weakness to occur or provides constructs that make this weakness easier to avoid. For example, consider using authorization frameworks such as the JAAS Authorization Framework [REF-233] and the OWASP ESAPI Access Control feature [REF-45].
  • Architecture and Design: For web applications, make sure that the access control mechanism is enforced correctly at the server side on every page. Users should not be able to access any unauthorized functionality or information by simply requesting direct access to that page. One way to do this is to ensure that all pages containing sensitive information are not cached, and that all such pages restrict access to requests that are accompanied by an active and authenticated session token associated with a user who has the required permissions to access that page.
  • System Configuration, Installation: Use the access control capabilities of your operating system and server environment and define your access control lists accordingly. Use a "default deny" policy when defining these ACLs.

References

Timeline

  1. Published
  2. Last updated by the source
  3. Latest EPSS score
AdvisorySeverityWhy it's related
GHSA-w7x8-q2gp-5cgg
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Flowise NodeVM sandbox escape via puppeteer allowlist - authenticated RCE and arbitrary file read via Chromium
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GHSA-qgvm-j2hm-6m38
Flowise: Unauthenticated OAuth2 token refresh endpoint returns access tokens — enables token theft for any connected service
Critical Also affects flowise
GHSA-5xvg-pmgg-3mxr
Flowise: CSV Agent Prompt Injection Remote Code Execution Vulnerability
Critical Also affects flowise
GHSA-gmmw-qg98-6j6p
Flowise: Broken Access Control in Stripe Subscription Endpoints Allows Cross-Tenant Billing Manipulation
High Also affects flowise
GHSA-8gj2-2cvc-6xx7
Flowise: Unauthenticated Credential Abuse via Text-to-Speech Endpoint Allows Unauthorized Use of Private Chatflow TTS Credentials
Medium Also affects flowise
GHSA-fm2f-4339-4p2f
Flowise: Missing Authorization on Execution Update Endpoint
Medium Also affects flowise
GHSA-wch5-xp77-fxg4
Flowise: Cross-Workspace OAuth2 Credential Metadata Leak
High Also affects flowise
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