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High

Flowise Unauthenticated Denial of Service (DoS) vulnerability

  • Disclosed: 27.08.2024
  • Updated: 11.10.2026 10:22

An Unauthenticated Denial of Service (DoS) vulnerability exists in Flowise version 1.8.2 leading to a complete crash of the instance running a vulnerable version due to improper handling of user supplied input to the /api/v1/get-upload-file api endpoint.

Affected software

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PlatformPackageVulnerable versionsFixed in
npm package flowise <= 1.8.2 no fix

References

CVSS score 7.5/10
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness (CWE)
CWE-400
Platform
npm
Package
flowise
Disclosed
27.08.2024
Updated
11.10.2026 10:22

Sources and licenses

OSV / GitHub Advisory Database - GHSA-48x4-mx8f-gr4h - CC BY 4.0

Vulnerability history: flowise

All published vulnerabilities of this package (npm package), newest first. Shows whether this is a one-off slip or a package that needs watching.

All (114) in the archive
Total entries
114
First → latest
04.2024 10.2026
Without a fix
16
Exploited in attacks
0

Severity breakdown

  • Critical 28
  • High 62
  • Medium 24

Disclosures per year

Severity:
  1. Flowise Unauthenticated Denial of Service (DoS) vulnerability this entry
    High · 7.5 CVE-2024-8182 <= 1.8.2 no fix
  2. Flowise Prompt Injection to RCE and SSRF via CSV/Airtable Agent Python Validator Bypass
    Critical CVE-2026-73487 < 3.1.3 3.1.3
  3. Flowise NodeVM sandbox escape via puppeteer allowlist - authenticated RCE and arbitrary file read via Chromium
    Critical CVE-2026-73483 < 3.1.3 3.1.3
  4. Flowise: Unauthenticated OAuth2 token refresh endpoint returns access tokens — enables token theft for any connected service
    Critical CVE-2026-70478 < 3.1.3 3.1.3
  5. Flowise: CSV Agent Prompt Injection Remote Code Execution Vulnerability
    Critical CVE-2026-70477 < 3.1.3 3.1.3
  6. Flowise: Broken Access Control in Stripe Subscription Endpoints Allows Cross-Tenant Billing Manipulation
    High CVE-2026-70476 < 3.1.3 3.1.3
  7. Flowise: Missing Authorization on Execution Update Endpoint
    High CVE-2026-70475 < 3.1.3 3.1.3
  8. Flowise: Cross-Workspace OAuth2 Credential Metadata Leak
    High CVE-2026-70474 < 3.1.3 3.1.3
  9. Flowise: Information Disclosure in GET /api/v1/upsert-history returns the entire server-wide upsert history
    High CVE-2026-70473 < 3.1.3 3.1.3
  10. Flowise: Cross-workspace credential IDOR in openai-assistants-vector-store
    High CVE-2026-70472 < 3.1.3 3.1.3
  11. Flowise: RCE via CSVAgent csvFile data URI base64 segment is interpolated into Python source without validation
    Critical CVE-2026-69264 < 3.1.3 3.1.3
  12. Flowise: Authenticated arbitrary file write in the `S3 Directory` document loader via unsanitized S3 object keys
    High ghsa-88pr-878c-24wf < 3.1.3 3.1.3
  13. Flowise: RBAC Bypass Leading to Unauthorized Workspace Variables Disclosure
    High CVE-2026-70471 < 3.1.3 3.1.3
  14. Flowise: Pyodide validator Unicode homoglyph bypass leads to RCE
    Critical CVE-2026-70470 < 3.1.3 3.1.3
  15. Flowise: CVE-2025-8943 Patch Bypass: npm_config_yes bypasses MCP environment variable blocklist (Unauthenticated RCE)
    High CVE-2026-69263 < 3.1.3 3.1.3
  16. Flowise: `DELETE /api/v1/chatflows/:id` does not validate resource type, allowing `agentflows:delete` and `chatflows:delete` to delete each other’s flow type
    High CVE-2026-69262 < 3.1.3 3.1.3
  17. Flowise RCE via SQLite Record Manager Node
    Critical CVE-2026-69259 < 3.1.3 3.1.3
  18. Flowise: Unauthenticated Property Injection into Flow Execution Context via Ungated `overrideConfig` Spread in Prediction API
    High CVE-2026-69258 < 3.1.3 3.1.3
  19. Flowise: SSRF Protection Bypass via IPv4-Mapped IPv6 Addresses
    High CVE-2026-69257 < 3.1.3 3.1.3
  20. Flowise: Remote Code Execution Vulnerability in CSVAgent
    Critical CVE-2026-69256 < 3.1.3 3.1.3
  21. Flowise: CSV Agent Remote Code Execution via Pyodide Code Injection — Root Shell Verified
    Critical CVE-2026-69255 < 3.1.3 3.1.3
Show more (20) Showing 21 of 90

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