| Component | Flowise |
| Severity | critical (CVSS 9.1) |
| CVSS vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N |
| Published (NVD) | 2026-08-04 |
| Last modified | 2026-09-14 |
| Affected versions | flowise < 3.1.3 |
| Fixed in | 3.1.3 |
| Weakness | CWE-639CWE-915 |
| CISA KEV | not listed |
NVD description
Flowise is a drag & drop user interface to build a customized large language model flow. Prior to 3.1.3, the unauthenticated POST /api/v1/prediction/:id endpoint accepted an overrideConfig object and unconditionally spread it into internal flowConfig and flowData objects in packages/server/src/utils/buildChatflow.ts and packages/server/src/utils/index.ts without checking apiOverrideStatus. This allowed unauthenticated attackers to inject arbitrary properties into the flow execution context of any public chatflow, overwrite values such as chatId, sessionId, and chatHistory, and control values resolved through $flow.* template variables consumed by flow nodes. This issue is fixed in version 3.1.3.
What to do
- Upgrade Flowise to
3.1.3or later. - Do not expose the component's API or UI to the internet without authentication in front of it.
Sources
- NVD: CVE-2026-69258
- https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-6vh2-wg4h-4vwj
- https://github.com/FlowiseAI/Flowise/commit/23b997ee5ef9e269b628bad0f56f1ecb86bd2fca
- https://github.com/FlowiseAI/Flowise/pull/6279
- https://github.com/FlowiseAI/Flowise/releases/tag/[email protected]
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Flowise through 3.1.4 contains missing route-level RBAC checks on chat message endpoints that allow low-privileged API keys to read and dele...
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Flowise through 3.1.4 (Enterprise/platform mode with SSO enabled) contains an authentication bypass in the SSO login path. When an SSO callb...