CVE-2026-90535
Last modified
CVE-2026-90535 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. 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.. EPSS estimates a 0.25% chance of exploitation in the next 30 days.
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.
Metrics
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Flowiseai | Flowise | < 3.1.4 |
References
- https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-xhxx-56g3-mx2rExploit, Vendor Advisory
- https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-xhxx-56g3-mx2rExploit, Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Analyzed
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