Server-Side Request Forgery Vulnerability in Flowise by FlowiseAI
CVE-2026-41270

7.1HIGH

Key Information:

Vendor

Flowiseai

Status
Flowise
Flowise-components
Vendor
CVE Published:
23 April 2026

What is CVE-2026-41270?

Flowise, a user-friendly tool for creating customized large language model flows, was found to have a vulnerability that allows authenticated users to bypass Server-Side Request Forgery (SSRF) protection. This issue stems from limitations in the Custom Function feature. Although the application employs safeguards against SSRF attacks through HTTP_DENY_LIST restrictions for certain libraries, the native Node.js http, https, and net modules are not similarly protected in the NodeVM sandbox environment. Consequently, this oversight can lead to unauthorized access to internal network resources, including sensitive cloud provider metadata services. Users are strongly advised to update to version 3.1.0 or later to mitigate this vulnerability.

Affected Version(s)

Flowise < 3.1.0

flowise-components < 3.1.0

References

https://github.com/FlowiseAI/Flowise/security/advisories/...
x_refsource_CONFIRM

CVSS V3.1

Score:
7.1
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
High
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.