CVE-2026-70476

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

HIGH
8.2
CVSS Score
Published: August 4, 2026 at 07:23 PM UTC
Updated: October 24, 2026 at 03:10 PM UTC
1 product affected across 1 vendorFlowise

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Severity
HIGH8.2
Exploit prediction
EPSS 0.5%
SSVC
PoC

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 3.1.3
Affected range stops below 3.1.2, so it looks safe — our inference, not a vendor statement
Affected range stops below 3.1.3, so it looks safe — our inference, not a vendor statement

References (4)

x_refsource_CONFIRMExploitVendor Advisory
Source: cverecord
https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-gmmw-qg98-6j6p
x_refsource_MISCIssue TrackingPatch
Source: cverecord
https://github.com/FlowiseAI/Flowise/pull/6321
x_refsource_MISCRelease Notes
Source: cverecord
https://github.com/FlowiseAI/Flowise/releases/tag/[email protected]

SSVC — Action Prioritization

SSVCPoCNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
HIGH
Availability
LOW
Vector?

Quick Info

StatusANALYZED
CWE
CWE-284CWE-639

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