Hackers Are Actively Exploiting a Max-Severity RCE in Flowise – Your LLM Apps Are Sitting Ducks
Attackers are hammering a critical remote code execution vulnerability in Flowise, the open-source platform for building custom LLM apps and AI agents, tracked as CVE-2025-59528. This max-severity flaw lets them run arbitrary code on vulnerable servers, and it’s already being exploited in the wild as of today.[3]
Diving into the tech: Flowise, popular for chaining LLMs into agentic workflows, has this RCE stemming from improper input validation in its core components. No patch details yet, but affected versions are the latest stable releases – if you’re running it exposed, assume compromise. Attackers chain it with prompt injections for persistence, echoing recent AI supply chain hits like Cline and Trivy.[1][3]
So what? Devs and sec teams building AI agents: this is your wake-up call. Flowise is everywhere in prototypes and prod for LLM orchestration – one bad deployment, and hackers own your server, stealing API keys, models, or worse, pivoting to your Kubernetes cluster like in that TeamPCP wiper mess. If you’re in Web Dev or AI, audit your stacks now; exposed endpoints are low-hanging fruit for nation-states or script kiddies.[1]
My take: AI hype is blinding us to basic sec 101 fails – prompt injection plus RCE is a killer combo, and with botnets like Kimwolf DDoSing everything else, expect this to snowball. Lock it down or get owned; no excuses in 2026.[1][3]
Krebs on Security: Supply chain attacks on Trivy, Cline, and botnet takedowns.
BleepingComputer: Flowise RCE CVE-2025-59528 exploited, April 07, 2026.
