| Component | Flowise |
| Severity | high (CVSS 7.1) |
| CVSS vector | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N |
| Published (NVD) | 2026-06-23 |
| Last modified | 2026-06-25 |
| Affected versions | flowise < 3.1.0 |
| Fixed in | 3.1.0 |
| Weakness | CWE-918 |
| CISA KEV | not listed |
NVD description
Flowise before 3.1.0 contains a server-side request forgery vulnerability in the Execute Flow node that allows attackers to bypass security validation by providing intranet addresses through the base URL field. Attackers can initiate HTTP requests to internal network addresses, access cloud metadata, and enumerate internal services by exploiting the missing secureFetch verification in httpSecurity.ts.
What to do
- Upgrade Flowise to
3.1.0or later. - Do not expose the component's API or UI to the internet without authentication in front of it.
Sources
- NVD: CVE-2026-56275
- https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-9hrv-gvrv-6gf2
- https://www.vulncheck.com/advisories/flowise-server-side-request-forgery-via-execute-flow-base-url
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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...