CVE-2026-73603

MediumCVSS 5.3/10Last modified Oct 24, 2026

Description

Flowise before 3.1.4 fails to validate chatflow visibility in the unauthenticated text-to-speech endpoint, allowing attackers to abuse private chatflow TTS credentials. Unauthenticated attackers can generate unlimited text-to-speech audio using stored OpenAI or ElevenLabs API keys by providing a valid chatflow UUID, incurring costs on the chatflow owner's account.

Metrics

CVSS 3.1 5.3/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Weakness enumeration

CWE-862

Affected software

No affected versions have been published.

Timeline

Published: Aug 13, 2026
Last modified: Oct 24, 2026
NVD status: Analyzed

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