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Exploit Code Published for Critical Flowise RCE Vulnerability

securityweek.com 2026-05-30 prompt injection Critical

What Happened

The one-click vulnerability allows attackers to execute arbitrary code on self-hosted Flowise servers by tricking users into importing a malicious chatflow. The post Exploit Code Published for Critical Flowise RCE Vulnerability appeared first on SecurityWeek .

Why It Matters

SecurityWeek reports that exploit code was published for a critical Flowise RCE flaw, where attackers can trick users into importing a malicious chatflow and then execute arbitrary code on self-hosted Flowise servers. Related reporting shows Flowise vulnerabilities have repeatedly enabled remote code execution through AI workflow and MCP-related logic, including prompt-injection-style abuse of agent components.[1][6][7] CyberSE.AI analysis: this is best classified as prompt injection because the reported attack path relies on manipulating AI workflow inputs to trigger unsafe execution, and it warrants testing of chatflow import controls, agent logic, and hostile input handling.

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CyberSE Analysis

This signal maps to prompt injection. Organizations using AI agents, LLM APIs, SaaS integrations, or sensitive data workflows should review whether this class of issue could create unauthorized tool execution, data leakage, weak approval gates, or unmanaged supply-chain exposure.

Recommended Actions

  • Restrict AI agent tool permissions and production write paths.
  • Review sensitive data access across prompts, logs, embeddings, memory, and SaaS integrations.
  • Add human approval workflows for high-impact or state-changing actions.
  • Run prompt injection and indirect prompt injection tests against affected workflows.
  • Document the owner, control gap, and remediation deadline for this risk class.

Source

https://www.securityweek.com/exploit-code-published-for-critical-flowise-rce-vulnerability/

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