| Component | Flowise |
| Severity | critical (CVSS 9.8) |
| CVSS vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| Published (NVD) | 2026-08-13 |
| Last modified | 2026-09-03 |
| Affected versions | flowise <= 3.1.4 |
| Fixed in | see the vendor advisory |
| Weakness | CWE-94 |
| CISA KEV | not listed |
NVD description
Flowise before 3.1.3 contains a regex-based Python code validator bypass in CSV and Airtable Agent nodes that allows unauthenticated attackers to inject malicious code via prompt injection. Attackers can exploit unblocked pandas functions like pd.read_json() to exfiltrate datasets, perform SSRF against internal services, or achieve code execution through the unauthenticated prediction API.
What to do
- NVD lists no fixed version yet: follow the vendor advisory below and keep Flowise off the public internet until a fix ships.
- Do not expose the component's API or UI to the internet without authentication in front of it.
Sources
- NVD: CVE-2026-73487
- https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-w7x8-q2gp-5cgg
- https://www.vulncheck.com/advisories/flowise-before-prompt-injection-rce-via-csv-agent
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Flowise through 3.1.4 resolves SSO and local-password users solely by email without storing provider or subject identifier bindings, allowin...
Flowise through 3.1.4 (Enterprise/platform mode with SSO enabled) contains an authentication bypass in the SSO login path. When an SSO callb...