CVE-2026-70477

UNKNOWN 0.0

Flowise: CSV Agent Prompt Injection Remote Code Execution Vulnerability

CVSS Score

0.0

EPSS Score

0.0%

EPSS Percentile

0th

Flowise is a drag & drop user interface to build a customized large language model flow. Prior to 3.1.3, a prompt injection sent to a chatflow using a CSV Agent node can cause the LLM to respond with a malicious Python script that bypasses the blocklist validator and executes in an unsandboxed Pyodide environment. The specific flaw exists within the run method of the CSV_Agents class, where untrusted data is used to construct an LLM prompt and the resulting pythonCode is validated by validatePythonCodeForDataFrame before execution. An attacker can leverage this to execute arbitrary code in the context of the service account. This issue is fixed in 3.1.3.

CWE	CWE-94
Vendor	flowiseai
Product	flowise
Published	Aug 4, 2026

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Affected Versions

FlowiseAI / Flowise

< 3.1.2

References

NVD ↗ CVE.org ↗ EPSS Data ↗

github.com: https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-5xvg-pmgg-3mxr github.com: https://github.com/FlowiseAI/Flowise/pull/6499 github.com: https://github.com/FlowiseAI/Flowise/commit/f4e2794f6a576b94578f2fdafbf49c2fb304626c github.com: https://github.com/FlowiseAI/Flowise/releases/tag/[email protected]