FlowiseAI Flowise up to 3.0.x Setting unrestricted upload

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.5$0-$5k0.00

Summaryinfo

A vulnerability marked as critical has been reported in FlowiseAI Flowise up to 3.0.x. This issue affects some unknown processing of the component Setting Handler. This manipulation causes unrestricted upload. The identification of this vulnerability is CVE-2026-41269. It is possible to initiate the attack remotely. There is no exploit available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability classified as critical was found in FlowiseAI Flowise up to 3.0.x. Affected by this vulnerability is an unknown code of the component Setting Handler. The manipulation with an unknown input leads to a unrestricted upload vulnerability. The CWE definition for the vulnerability is CWE-434. The product allows the attacker to upload or transfer files of dangerous types that can be automatically processed within the product's environment. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

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.

The advisory is shared at github.com. This vulnerability is known as CVE-2026-41269 since 04/18/2026. The exploitation appears to be easy. The attack can be launched remotely. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1608.002 for this issue.

Upgrading to version 3.1.0 eliminates this vulnerability.

The vulnerability is also documented in the databases at EUVD (EUVD-2026-25286) and CERT Bund (WID-SEC-2026-1145). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Affected

  • Open Source Flowise

Productinfo

Vendor

Name

Version

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.7
VulDB Meta Temp Score: 6.5

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 7.1
CNA Vector (GitHub_M): 🔒

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Unrestricted upload
CWE: CWE-434 / CWE-284 / CWE-266
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Flowise 3.1.0

Timelineinfo

04/18/2026 CVE reserved
04/23/2026 +5 days Advisory disclosed
04/23/2026 +0 days VulDB entry created
04/25/2026 +2 days VulDB entry last update

Sourcesinfo

Product: github.com

Advisory: GHSA-rh7v-6w34-w2rr
Status: Confirmed

CVE: CVE-2026-41269 (🔒)
GCVE (CVE): GCVE-0-2026-41269
GCVE (VulDB): GCVE-100-359209
EUVD: 🔒
CERT Bund: WID-SEC-2026-1145 - Flowise: Mehrere Schwachstellen

Entryinfo

Created: 04/23/2026 23:18
Updated: 04/25/2026 06:45
Changes: 04/23/2026 23:18 (65), 04/24/2026 00:04 (1), 04/25/2026 06:45 (7)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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