#nodejs

### Impact On 8 September 2025, an npm publishing account for `is-arrayish` was taken over after a phishing attack. Version `0.3.3` was published, functionally identical to the previous patch version, but with a malware payload added attempting to redirect cryptocurrency transactions to the attacker's own addresses from within browser environments. Local environments, server environments, command line applications, etc. are not affected. If the package was used in a browser context (e.g. a direct `<script>` inclusion, or via a bundling tool such as Babel, Rollup, Vite, Next.js, etc.) there is a chance the malware still exists and such bundles will need to be rebuilt. The malware seemingly only targets cryptocurrency transactions and wallets such as MetaMask. See references below for more information on the payload. ### Patches npm removed the offending package from the registry over the course of the day on 8 September, preventing further downloads from npm proper. On 13 September,...

### Impact On 8 September 2025, an npm publishing account for `error-ex` was taken over after a phishing attack. Version `1.3.3` was published, functionally identical to the previous patch version, but with a malware payload added attempting to redirect cryptocurrency transactions to the attacker's own addresses from within browser environments. Local environments, server environments, command line applications, etc. are not affected. If the package was used in a browser context (e.g. a direct `<script>` inclusion, or via a bundling tool such as Babel, Rollup, Vite, Next.js, etc.) there is a chance the malware still exists and such bundles will need to be rebuilt. The malware seemingly only targets cryptocurrency transactions and wallets such as MetaMask. See references below for more information on the payload. ### Patches npm removed the offending package from the registry over the course of the day on 8 September, preventing further downloads from npm proper. On 13 September, th...

### Impact On 8 September 2025, the npm publishing account for `color-convert` was taken over after a phishing attack. Version `3.1.1` was published, functionally identical to the previous patch version, but with a malware payload added attempting to redirect cryptocurrency transactions to the attacker's own addresses from within browser environments. Local environments, server environments, command line applications, etc. are not affected. If the package was used in a browser context (e.g. a direct `<script>` inclusion, or via a bundling tool such as Babel, Rollup, Vite, Next.js, etc.) there is a chance the malware still exists and such bundles will need to be rebuilt. The malware seemingly only targets cryptocurrency transactions and wallets such as MetaMask. See references below for more information on the payload. ### Patches npm removed the offending package from the registry over the course of the day on 8 September, preventing further downloads from npm proper. On 13 Septemb...

### Impact On 8 September 2025, an npm publishing account for `color-name` was taken over after a phishing attack. Version `2.0.1` was published, functionally identical to the previous patch version, but with a malware payload added attempting to redirect cryptocurrency transactions to the attacker's own addresses from within browser environments. Local environments, server environments, command line applications, etc. are not affected. If the package was used in a browser context (e.g. a direct `<script>` inclusion, or via a bundling tool such as Babel, Rollup, Vite, Next.js, etc.) there is a chance the malware still exists and such bundles will need to be rebuilt. The malware seemingly only targets cryptocurrency transactions and wallets such as MetaMask. See references below for more information on the payload. ### Patches npm removed the offending package from the registry over the course of the day on 8 September, preventing further downloads from npm proper. On 13 September, ...

### Impact On 8 September 2025, the npm publishing account for `debug` was taken over after a phishing attack. Version `4.4.2` was published, functionally identical to the previous patch version, but with a malware payload added attempting to redirect cryptocurrency transactions to the attacker's own addresses from within browser environments. Local environments, server environments, command line applications, etc. are not affected. If the package was used in a browser context (e.g. a direct `<script>` inclusion, or via a bundling tool such as Babel, Rollup, Vite, Next.js, etc.) there is a chance the malware still exists and such bundles will need to be rebuilt. The malware seemingly only targets cryptocurrency transactions and wallets such as MetaMask. See references below for more information on the payload. ### Patches npm removed the offending package from the registry over the course of the day on 8 September, preventing further downloads from npm proper. On 13 September, the ...

### Impact On 8 September 2025, the npm publishing account for `color` was taken over after a phishing attack. Version `5.0.1` was published, functionally identical to the previous patch version, but with a malware payload added attempting to redirect cryptocurrency transactions to the attacker's own addresses from within browser environments. Local environments, server environments, command line applications, etc. are not affected. If the package was used in a browser context (e.g. a direct `<script>` inclusion, or via a bundling tool such as Babel, Rollup, Vite, Next.js, etc.) there is a chance the malware still exists and such bundles will need to be rebuilt. The malware seemingly only targets cryptocurrency transactions and wallets such as MetaMask. See references below for more information on the payload. ### Patches npm removed the offending package from the registry over the course of the day on 8 September, preventing further downloads from npm proper. On 13 September, the ...

### Impact On 8 September 2025, the npm publishing account for `color-string` was taken over after a phishing attack. Version `2.1.1` was published, functionally identical to the previous patch version, but with a malware payload added attempting to redirect cryptocurrency transactions to the attacker's own addresses from within browser environments. Local environments, server environments, command line applications, etc. are not affected. If the package was used in a browser context (e.g. a direct `<script>` inclusion, or via a bundling tool such as Babel, Rollup, Vite, Next.js, etc.) there is a chance the malware still exists and such bundles will need to be rebuilt. The malware seemingly only targets cryptocurrency transactions and wallets such as MetaMask. See references below for more information on the payload. ### Patches npm removed the offending package from the registry over the course of the day on 8 September, preventing further downloads from npm proper. On 13 Septembe...

### Impact On 8 September 2025, the npm publishing account for `simple-swizzle` was taken over after a phishing attack. Version `0.2.3` was published, functionally identical to the previous patch version, but with a malware payload added attempting to redirect cryptocurrency transactions to the attacker's own addresses from within browser environments. Local environments, server environments, command line applications, etc. are not affected. If the package was used in a browser context (e.g. a direct `<script>` inclusion, or via a bundling tool such as Babel, Rollup, Vite, Next.js, etc.) there is a chance the malware still exists and such bundles will need to be rebuilt. The malware seemingly only targets cryptocurrency transactions and wallets such as MetaMask. See references below for more information on the payload. ### Patches npm removed the offending package from the registry over the course of the day on 8 September, preventing further downloads from npm proper. On 13 Septem...

### Impact On 8 September 2025, the npm publishing account for `backslash` was taken over after a phishing attack. Version `0.2.1` was published, functionally identical to the previous patch version, but with a malware payload added attempting to redirect cryptocurrency transactions to the attacker's own addresses from within browser environments. Local environments, server environments, command line applications, etc. are not affected. If the package was used in a browser context (e.g. a direct `<script>` inclusion, or via a bundling tool such as Babel, Rollup, Vite, Next.js, etc.) there is a chance the malware still exists and such bundles will need to be rebuilt. The malware seemingly only targets cryptocurrency transactions and wallets such as MetaMask. See references below for more information on the payload. ### Patches npm removed the offending package from the registry over the course of the day on 8 September, preventing further downloads from npm proper. On 13 September, ...

### Summary The Custom MCPs feature is designed to execute OS commands, for instance, using tools like `npx` to spin up local MCP Servers. However, Flowise's inherent authentication and authorization model is minimal and lacks role-based access controls (RBAC). Furthermore, the default installation of Flowise operates without authentication unless explicitly configured using the `FLOWISE_USERNAME` and `FLOWISE_PASSWORD` environment variables. This combination presents a significant security risk, potentially allowing users on the platform to execute unsandboxed system commands. This can result in Remote Code Execution (RCE) and complete compromise of the running platform container or server. ### PoC 1. Follow the provided instructions for running the app using Docker Compose (or other methods of your choosing such as `npx`, `pnpm`, etc): https://github.com/FlowiseAI/Flowise?tab=readme-ov-file#-docker 2. Create a new file named `payload.json` somewhere in your machine, with the fo...