What is GHSA-4xpg-6vjv-3v64?

GHSA-4xpg-6vjv-3v64 is a security advisory published by GitHub Security Advisories with Medium severity. Flowise versions before 3.1.4 contain an unauthenticated denial of service vulnerability in the ...

Which CVE IDs does GHSA-4xpg-6vjv-3v64 cover?

GHSA-4xpg-6vjv-3v64 covers the following CVE IDs: CVE-2026-90535. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-4xpg-6vjv-3v64?

GHSA-4xpg-6vjv-3v64 has a CVSS v3 base score of 7.5, published by GitHub Security Advisories.

GHSA-4xpg-6vjv-3v64MediumCVSS 7.5

Flowise versions before 3.1.4 contain an unauthenticated denial of service vulnerability in the ...

Vendor

GitHub Security Advisories

Published

September 12, 2026

Last Modified

September 15, 2026

🔗 CVE IDs covered (1)

CVE-2026-90535 →

📋 Description

Flowise versions before 3.1.4 contain an unauthenticated denial of service vulnerability in the /api/v1/text-to-speech/abort endpoint that accepts user-supplied chatflowId and chatId without ownership verification. Attackers can terminate active chatflow predictions for any user by submitting requests with known chatflow and chat identifiers, causing targeted service disruption.

🔗 References (4)

https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-xhxx-56g3-mx2r
https://nvd.nist.gov/vuln/detail/CVE-2026-90535
https://www.vulncheck.com/advisories/flowise-before-3.1.4-denial-of-service-via-text-to-speech-abort
https://github.com/advisories/GHSA-4xpg-6vjv-3v64