HIGHVulnerability
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 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.
Properties
- severity
- HIGH
- score
- 7.5
- cve_id
- CVE-2026-90535
- signal_observed_at
- 2026-09-21T23:07:07+00:00
- vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- published_at
- 2026-09-12T13:16:51.380
- last_modified
- 2026-09-15T19:07:20.020
Related Entities (3)
AFFECTS_PRODUCT (1)
→[Product]
HAS_WEAKNESS (1)
→[Weakness]Missing Authorization
DESCRIBED_BY (1)
→[Source]NVD
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