CVE-2026-67621
High
Description
Flowise through 3.1.4 contains a missing authorization vulnerability that allows authenticated workspace members to perform unauthorized document store operations by accessing unprotected mutation endpoints. Attackers holding only view-level permissions can send direct HTTP requests to the upsert and refresh document store routes to trigger document ingestion, refresh vector database contents, consume embedding API credits, and modify knowledge bases used by downstream chatflows.
SeverityHigh
CVSS7.6
Exploit probability—
ProductFlowise
PublishedAug 6, 2026
First seenAug 6, 2026
Weakness typeCWE-862Missing authorization
How to fix
Vendor advisories
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| flowiseai flowise | v ≤ 3.1.4 | — |
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