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CVE PROGRAM SOURCE RECORD6.9 Medium

CVE-2026-56277

Flowise - Hardcoded CORS Wildcard in TTS Endpoint

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Status
Published
Published
Updated
Assigning organization
VulnCheck

Description

Flowise before 3.1.2 sets Access-Control-Allow-Origin to a hardcoded wildcard (*) on its text-to-speech (TTS) generation endpoint (packages/server/src/controllers/text-to-speech/index.ts), independent of the server's configured CORS policy. This bypasses the server's otherwise restrictive default CORS configuration (getCorsOptions()) and allows any webpage to make cross-origin requests that trigger TTS generation using stored credentials, enabling drive-by cross-origin credential abuse.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Flowise Flowise

Default version status: unaffected

  • 0 to < 3.1.2affected
  • 3.1.2unaffected
pkg:npm/flowise

References