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CRITICAL

Flowise: CSV Agent Prompt Injection Remote Code Execution Vulnerability

Published Apr 23, 2026

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.

Affected products

Remediation

No remediation recorded yet.

Weaknesses (1)

References (4)

Change history (0)

No recorded changes yet.

Sources
CVE.org / MITRE
Status PUBLISHED
Assigner GitHub_M
Published Apr 23, 2026
Updated Apr 24, 2026
Reserved Apr 18, 2026
CISA Vulnrichment
Updated Apr 24, 2026
NVD
Status Analyzed
Modified Jun 17, 2026
Red Hat
Severity n/a
Public date n/a
ENISA EUVD
Assigner GitHub_M
Published Apr 23, 2026
Updated Apr 24, 2026
Exploited since n/a
EUVD-2026-25293 GHSA-3HJV-C53M-58JJ