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CVE-2026-41269

7.1 · HIGH

Flowise is a drag & drop user interface to build a customized large language model flow.

Published Apr 23, 2026CWE-434EPSS 0.69%

Overview

CVE-2026-41269 is a high-severity vulnerability. It was published on April 23, 2026 and has a CVSS 3.1 base score of 7.1 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.1, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

Technical description

Flowise is a drag & drop user interface to build a customized large language model flow. Prior to 3.1.0, the Chatflow configuration file upload settings can be modified to allow the application/javascript MIME type. This lets an attacker upload .js files even though the frontend doesn’t normally allow JavaScript uploads. This enables attackers to persistently store malicious Node.js web shells on the server, potentially leading to Remote Code Execution (RCE). This vulnerability is fixed in 3.1.0.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

GitHubgithub.com/FlowiseAI/Flowise/security/advisories/GHSA-rh7v-6w34-w2rrGitHubgithub.com/FlowiseAI/Flowise/security/advisories/GHSA-rh7v-6w34-w2rr

How CyberStrike helps

Frequently asked questions

What is CVE-2026-41269?

CVE-2026-41269 is a high-severity vulnerability. It was published on April 23, 2026 and has a CVSS 3.1 base score of 7.1 (HIGH).

How severe is CVE-2026-41269?

This vulnerability has a CVSS 3.1 base score of 7.1, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2026-41269?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2026-41269?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-41269 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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