CVE-2026-41279

High

Description

Flowise is a drag & drop user interface to build a customized large language model flow. Prior to 3.1.0, the text-to-speech generation endpoint (POST /api/v1/text-to-speech/generate) is whitelisted (no auth) and accepts a credentialId directly in the request body. When called without a chatflowId, the endpoint uses the provided credentialId to decrypt the stored credential (e.g., OpenAI or ElevenLabs API key) and generate speech. This vulnerability is fixed in 3.1.0.

SeverityHigh

CVSS7.5

Exploit probability—

ProductFlowise

PublishedApr 23, 2026

First seenApr 23, 2026

Weakness typeCWE-639Authorization bypass through user-controlled key

How to fix

Update

flowiseai flowise3.1.0 or later
flowise3.1.0 or later

Affected products

Product	Affected versions	Fixed in
flowiseai flowise	v < 3.1.0	3.1.0
flowisenpm	v < 3.1.0	3.1.0

Check your version

Choose the product and enter the version you run to see whether it falls in the affected range.

In the Intelligence 360 plan

Attack Surface Management

See the assets tied to your domains, the technologies they run and known vulnerabilities in one list.