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.
Metrics
Affected Vendors & Products
References
History
Tue, 04 Aug 2026 21:45:00 +0000
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Flowiseai
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Flowiseai
Flowiseai flowise |
Tue, 04 Aug 2026 20:15:00 +0000
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| Description | 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. | |
| Title | Flowise: CSV Agent Prompt Injection Remote Code Execution Vulnerability | |
| Weaknesses | CWE-94 | |
| References |
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| Metrics |
cvssV4_0
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Status: PUBLISHED
Assigner: GitHub_M
Published:
Updated: 2026-08-04T19:29:14.796Z
Reserved: 2026-08-04T15:24:41.339Z
Link: CVE-2026-70477
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OpenCVE Enrichment
Updated: 2026-08-04T21:45:04Z