CVE-2026-41264: CWE-184: Incomplete List of Disallowed Inputs in FlowiseAI Flowise
CVE-2026-41264 is a critical vulnerability in Flowise versions prior to 3. 1. 0 affecting the CSV_Agents class. It arises from incomplete input filtering and lack of proper sandboxing when evaluating Python scripts generated by a large language model (LLM). An unauthenticated attacker able to send prompts to a chatflow using the CSV Agent node can exploit this by injecting malicious Python code, which executes with the privileges of the user running the Flowise server. This vulnerability is fixed in version 3. 1. 0.
AI Analysis
Technical Summary
FlowiseAI's Flowise product before version 3.1.0 contains a vulnerability (CWE-184) in the run method of the CSV_Agents class due to an incomplete list of disallowed inputs and insufficient sandboxing of LLM-generated Python scripts. This allows an unauthenticated attacker to perform prompt injection to cause execution of arbitrary Python code on the server hosting Flowise. The vulnerability has a CVSS 4.0 score of 9.2, indicating critical severity. The issue is resolved in Flowise version 3.1.0.
Potential Impact
Successful exploitation allows remote unauthenticated attackers to execute arbitrary code on the Flowise server with the privileges of the user running the server. This can lead to full system compromise depending on the server's permissions. The vulnerability affects all Flowise versions prior to 3.1.0.
Mitigation Recommendations
Upgrade Flowise to version 3.1.0 or later, where this vulnerability is fixed. Since no official patch links or vendor advisory are provided, confirm the upgrade from the vendor's official release notes or repository. Until upgraded, restrict access to the chatflow interfaces that use the CSV Agent node to trusted users only.
CVE-2026-41264: CWE-184: Incomplete List of Disallowed Inputs in FlowiseAI Flowise
Description
CVE-2026-41264 is a critical vulnerability in Flowise versions prior to 3. 1. 0 affecting the CSV_Agents class. It arises from incomplete input filtering and lack of proper sandboxing when evaluating Python scripts generated by a large language model (LLM). An unauthenticated attacker able to send prompts to a chatflow using the CSV Agent node can exploit this by injecting malicious Python code, which executes with the privileges of the user running the Flowise server. This vulnerability is fixed in version 3. 1. 0.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
FlowiseAI's Flowise product before version 3.1.0 contains a vulnerability (CWE-184) in the run method of the CSV_Agents class due to an incomplete list of disallowed inputs and insufficient sandboxing of LLM-generated Python scripts. This allows an unauthenticated attacker to perform prompt injection to cause execution of arbitrary Python code on the server hosting Flowise. The vulnerability has a CVSS 4.0 score of 9.2, indicating critical severity. The issue is resolved in Flowise version 3.1.0.
Potential Impact
Successful exploitation allows remote unauthenticated attackers to execute arbitrary code on the Flowise server with the privileges of the user running the server. This can lead to full system compromise depending on the server's permissions. The vulnerability affects all Flowise versions prior to 3.1.0.
Mitigation Recommendations
Upgrade Flowise to version 3.1.0 or later, where this vulnerability is fixed. Since no official patch links or vendor advisory are provided, confirm the upgrade from the vendor's official release notes or repository. Until upgraded, restrict access to the chatflow interfaces that use the CSV Agent node to trusted users only.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitHub_M
- Date Reserved
- 2026-04-18T14:01:46.801Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 69ea9e7887115cfb686fc345
Added to database: 4/23/2026, 10:34:32 PM
Last enriched: 4/23/2026, 11:22:55 PM
Last updated: 4/24/2026, 5:41:11 AM
Views: 3
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