Remote Code Execution Vulnerability in Flowise by FlowiseAI
CVE-2026-41269

7.1HIGH

Key Information:

Vendor

Flowiseai

Status
Flowise
Vendor
CVE Published:
23 April 2026

What is CVE-2026-41269?

Flowise, a drag & drop user interface for custom large language model flows, has a vulnerability that affects versions prior to 3.1.0. The Chatflow configuration file upload settings can be misconfigured, allowing the application/javascript MIME type to be accepted. As a result, attackers can exploit this flaw to upload malicious JavaScript (.js) files, which are typically restricted. This can lead to the persistent storage of harmful Node.js web shells on the server, resulting in unauthorized remote code execution capabilities. To mitigate this risk, users are advised to upgrade to version 3.1.0, where this exploit has been addressed.

Affected Version(s)

Flowise < 3.1.0

References

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

CVSS V3.1

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

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.