PT-2026-71431 · Flowise · Flowise

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CVE-2026-73603

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Published

2026-08-04

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Updated

2026-08-14

CVSS v4.0

6.3

Medium

VectorAV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N
Name of the Vulnerable Software and Affected Versions Flowise versions prior to 3.1.4
Description An issue exists where the software fails to validate chatflow visibility in the unauthenticated text-to-speech endpoint. This allows unauthenticated attackers to abuse private chatflow text-to-speech credentials by providing a valid chatflow UUID. Consequently, attackers can generate unlimited audio using stored OpenAI or ElevenLabs API keys, leading to financial costs for the chatflow owner.
Recommendations Update to version 3.1.4 or later.

Exploit

Fix

Missing Authorization

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Weakness Enumeration

Related Identifiers

CVE-2026-73603
GHSA-8GJ2-2CVC-6XX7

Affected Products

Flowise