Vulnerability Description
Flowise is a drag & drop user interface to build a customized large language model flow. Prior to 3.1.0, the specific flaw exists within the run method of the CSV_Agents class. The issue results from the lack of proper sandboxing when evaluating an LLM generated python script. An attacker can leverage this vulnerability to execute code in the context of the user running the server. Using prompt injection techniques, an unauthenticated attacker with the ability to send prompts to a chatflow using the CSV Agent node may convince an LLM to respond with a malicious python script that executes attacker controlled commands on the Flowise server. This vulnerability is fixed in 3.1.0.
CVSS Score
CRITICAL
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Flowiseai | Flowise | < 3.1.0 |
Related Weaknesses (CWE)
References
- https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-3hjv-c53m-58jjExploitVendor Advisory
- https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-3hjv-c53m-58jjExploitVendor Advisory
FAQ
What is CVE-2026-41264?
CVE-2026-41264 is a vulnerability with a CVSS score of 9.8 (CRITICAL). Flowise is a drag & drop user interface to build a customized large language model flow. Prior to 3.1.0, the specific flaw exists within the run method of the CSV_Agents class. The issue results from ...
How severe is CVE-2026-41264?
CVE-2026-41264 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.
Is there a patch for CVE-2026-41264?
Check the references section above for vendor advisories and patch information. Affected products include: Flowiseai Flowise.