SecuriTricks - CVE-2026-41269

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.

Product(s) Impacted

Vendor	Product	Versions
Flowiseai	Flowise	*

Weaknesses

Common security weaknesses mapped to this vulnerability.

CWE-434

Unrestricted Upload of File with Dangerous Type

The product allows the attacker to upload or transfer files of dangerous types that can be automatically processed within the product's environment.

*CPE(s)

Affected systems and software identified for this CVE.

Type	Vendor	Product	Version	Update	Edition	Language	Software Edition	Target Software	Target Hardware	Other Information
a	flowiseai	flowise	/	/	/	/	/	/	/	/

References

https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-rh7v-6w34-w2rr

CVSS Score

7.1 / 10

CVSS Data - 3.1

Attack Vector: NETWORK
Attack Complexity: LOW
Privileges Required: LOW
Scope: UNCHANGED
Confidentiality Impact: LOW
Integrity Impact: HIGH
Availability Impact: NONE

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:N

View Vector String

Timeline

Published: April 23, 2026, 8:16 p.m.
Last Modified: April 24, 2026, 7:17 p.m.

Status : Modified

CVE has been recently published to the CVE List and has been received by the NVD.

More info

Source

[email protected]

CVE-2026-41269