MEDIUM 6.3 NVD
CVE-2026-90535
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
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
- https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-xhxx-56g3-mx2r
- https://www.vulncheck.com/advisories/flowise-before-3.1.4-denial-of-service-via-text-to-sp
This medium severity vulnerability with a CVSS score of 6.3 was published on 2026-09-12 via NVD.
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