CVE-2026-92959: Protection Mechanism Failure

vm2 before 3.11.8 does not fully enforce the allowAsync: false option in VM and NodeVM. While localPromise.prototype.then is replaced with a handler that throws 'Async not available', the sandbox's Promise static methods Promise.resolve, Promise.all, Promise.race, Promise.any, and...

CVE-2026-92938: Protection Mechanism Failure

vm2 versions 3.11.3 through 3.11.6 expose Node.js's host node:sqlite module to code running in NodeVM when that builtin is permitted, either explicitly or through builtin: ''. The module is wrapped with vm.readonly, which prevents property assignment but leaves host-authority callables reachable;...

CVE-2026-92958: Improper Privilege Management

vm2 through 3.11.6 contains a builtin-module denylist bypass in NodeVM. When the embedder uses the builtin wildcard together with negative entries e.g. require: builtin: '', '-fs', '-childprocess' , negative entries are matched by exact module name in lib/builtin.js, so -fs removes only the built...

PT-2026-95385

Name of the Vulnerable Software and Affected Versions vm2 versions prior to 3.12.1 Description A sandbox escape exists in VM and NodeVM when an embedder exposes a host API that returns a host-realm Promise. The bridge's rejection sanitizer, specifically the functions hostPromiseSanitizeReject,...

PT-2026-94310

Name of the Vulnerable Software and Affected Versions vm2 versions 3.11.3 through 3.11.6 Description When the builtin: '' configuration or explicit permission is granted, the host node:sqlite module is exposed to code running in NodeVM. Although the module is wrapped with vm.readonly to prevent...

PT-2026-94311

Name of the Vulnerable Software and Affected Versions vm2 versions 3.11.3 through 3.11.6 Description When the crypto builtin is allowed, the host Node.js crypto module is exposed to a NodeVM sandbox. Although the module is presented via a recursive read-only proxy, its callable exports still...

GHSA-M5W8-4GQ2-6F8X vm2: NodeVM `builtin: ['*']` exposes `os` and `dns` — process-wide observability reads AND writes that hijack the host (sibling class of GHSA-9g8x-92q2-p28f)

NodeVM builtin: '' exposes os and dns — process-wide observability reads AND writes that hijack the host sibling class of GHSA-9g8x-92q2-p28f CWE: CWE-200 Exposure of Sensitive Information to an Unauthorized Actor chained with CWE-732 Incorrect Permission Assignment for Critical Resource and...

Incorrect Permission Assignment for Critical Resource

Overview org.webjars.npm:vm2 is a sandbox that can run untrusted code with whitelisted Node's built-in modules. Affected versions of this package are vulnerable to Incorrect Permission Assignment for Critical Resource in the NodeVM configuration when builtin: '' is used, which exposes the os and...

CVE-2026-73483

Summary of the vulnerability (CVE-2026-73483): Flowise (flows: flowise, flowise-components) versions

CVE-2026-73483 Flowise before 3.1.3 Sandbox Escape via Puppeteer

Flowise packages flowise and flowise-components in versions = 3.1.2 contain a sandbox escape in the vm2/@flowiseai/nodevm JavaScript sandbox. An authenticated user with access to the /api/v1/node-custom-function endpoint can escape the sandbox by supplying attacker-controlled executablePath and...

CVE-2026-73483: Improper Neutralization of Special Elements used in an OS Command

Flowise packages flowise and flowise-components in versions = 3.1.2 contain a sandbox escape in the vm2/@flowiseai/nodevm JavaScript sandbox. An authenticated user with access to the /api/v1/node-custom-function endpoint can escape the sandbox by supplying attacker-controlled executablePath and...

NPM: Flowise: RCE via NodeVM Sandbox Escape in executeJavaScriptCode() nodeVMOptions Override

NPM: Flowise: RCE via NodeVM Sandbox Escape in executeJavaScriptCode nodeVMOptions Override vulnerability discovered by ? in WordPress Npm flowise-components versions = 3.1.2...

CVE-2026-69254

CVE-2026-69254 affects Flowise versions before 3.1.3. The issue arises in the executeJavaScriptCode() path where caller-provided nodeVMOptions are merged with default NodeVM security settings, allowing an attacker to override the sandbox protection. By reaching packages/server/src/routes/node-cus...

CVE-2026-69254 Flowise: RCE via NodeVM Sandbox Escape in executeJavaScriptCode() nodeVMOptions Override

Flowise is a drag & drop user interface to build a customized large language model flow. Prior to 3.1.3, executeJavaScriptCode accepted caller-provided nodeVMOptions and merged them over the default NodeVM security settings in packages/components/src/utils.ts. An authenticated attacker reaching...

Flowise Sandbox Escape to RCE

============================================================================= Security Advisory elttam Topic: Flowise JavaScript Sandbox Escape Module: FlowiseAI/Flowise, FlowiseAI/nodevm Disclosed: 11-Apr-2026 Credits: Luke Jahnke and Alex Brown Affects: FlowiseAI/Flowise 3.1.1, FlowiseAI/nodevm...

GHSA-WG86-R78F-74MP Flowise Sandbox Escape to RCE

============================================================================= Security Advisory elttam Topic: Flowise JavaScript Sandbox Escape Module: FlowiseAI/Flowise, FlowiseAI/nodevm Disclosed: 11-Apr-2026 Credits: Luke Jahnke and Alex Brown Affects: FlowiseAI/Flowise 3.1.1, FlowiseAI/nodevm...

CVE-2026-47141

vm2 is an open source vm/sandbox for Node.js. Prior to version 3.11.4, NodeVM exposes some process-wide observability builtins when they are allowed through require.builtin. The diagnosticschannel, asynchooks, and perfhooks builtins are not blocked by the dangerous builtin denylist. These modules...

CVE-2026-47141

CVE-2026-47141 affects vm2 NodeVM where diagnostics_channel, async_hooks, and perf_hooks observability builtins were exposed to sandboxed code before patching in vm2 3.11.4. These process‑wide modules can leak host data (e.g., HTTP headers, AsyncResource state, performance entries) into the sandb...

CVE-2026-47141 vm2: NodeVM observability builtins leak host process and HTTP request data

vm2 is an open source vm/sandbox for Node.js. Prior to version 3.11.4, NodeVM exposes some process-wide observability builtins when they are allowed through require.builtin. The diagnosticschannel, asynchooks, and perfhooks builtins are not blocked by the dangerous builtin denylist. These modules...

CVE-2026-47139 vm2: NodeVM network builtin exclusions bypass via internal _http_client and _http_server

vm2 is an open source vm/sandbox for Node.js. Prior to version 3.11.4, NodeVM supports excluding public network builtins from the wildcard builtin option. With this configuration direct access to http, https, http2, net, dgram, tls, dns, and dns/promises is blocked. However, Node.js also exposes...