Reference page — cumulative record through Sunday, October 4, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.

CVE-2026-70476

CVE-2026-70476HIGH

FlowiseAI Flowise — Flowise: Broken Access Control in Stripe Subscription Endpoints Allows Cross-Tenant Billing Manipulation

  AV  AC  AT  PR  UI  VC  VI  VA   CVSS    EPSS   %ile   KEV
   N   L   P   N   N   N   H   L    8.3   .0052   42.0     —

AFFECTED
  Product  Versions   Fixed
  Flowise  < 3.1.2 –  —

TIMELINE
  Aug 4   Reserved by GitHub_M
  Aug 4   Published (CNA: GitHub_M)
  Sep 11  EXPLOIT PUBLISHED — CVE-2026-70476 (FlowiseAI Flowise). Public exploit reference added.

CWE-284, CWE-639 · CNA: GitHub_M · CVSS v4.0 · 4 references · NVD status: Analyzed

Description

Flowise is a drag & drop user interface to build a customized large language model flow. Prior to 3.1.3, several organization billing endpoints in packages/server/src/enterprise/routes/organization.route.ts and packages/server/src/enterprise/controllers/organization.controller.ts accept attacker-controlled Stripe subscriptionId values without verifying that the identifier belongs to the authenticated user's organization. An authenticated attacker can perform unauthorized Stripe subscription operations on other tenants, including changing subscription plans or modifying seat quantities, resulting in financial impact and service disruption. This issue is fixed in 3.1.3.

Lifecycle

Complete event history — 3 events, chronological
Date	Event	Detail
August 4, 2026	Reserved	Reserved by GitHub_M
August 4, 2026	Published	Published (CNA: GitHub_M)
September 11, 2026	EXPLOIT PUBLISHED	EXPLOIT PUBLISHED — CVE-2026-70476 (FlowiseAI Flowise). Public exploit reference added.

Affected

Affected products and packages — 1 row
Vendor	Product / Package	Ecosystem	Version introduced	Fixed
FlowiseAI	Flowise	—	< 3.1.2	—

Weaknesses

CWE-284 · CWE-639

References (4)

https://github.com/FlowiseAI/Flowise/commit/4d7899d02ca370a5510406be5c91483085a412f9 [Patch]
https://github.com/FlowiseAI/Flowise/pull/6321 [Issue Tracking, Patch]
https://github.com/FlowiseAI/Flowise/releases/tag/flowise@3.1.3 [Release Notes]
https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-gmmw-qg98-6j6p [Exploit, Vendor Advisory]

Authoritative record: CVE-2026-70476 at cve.org

Vendors: flowiseai

Weaknesses: CWE-284 · CWE-639

About this page

This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2026-70476 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Sunday, October 4, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.