CVE-2026-56275
Flowise - Server-Side Request Forgery via Execute Flow Base URL
- State
- Published
- Severity
- 6.0 Medium
- Published
- Jun 23, 2026
- Updated
- Jun 23, 2026
- Reserved
- Jun 20, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 6.0 Medium | CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N | VulnCheck |
Weaknesses
- CWE-918 Server-Side Request Forgery (SSRF)
Affected Products
| Product | Versions |
|---|---|
FlowiseFlowise |
|
FlowiseFlowise |
|
References
- GitHub Security Advisory (GHSA-9hrv-gvrv-6gf2)vendor-advisory
- VulnCheck Advisory: Flowise - Server-Side Request Forgery via Execute Flow Base URLthird-party-advisory
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