NPM: vm2: timeout Option Bypass via FinalizationRegistry Cleanup Callback (Unbounded Host Event-Loop Block)

NPM: vm2: timeout Option Bypass via FinalizationRegistry Cleanup Callback Unbounded Host Event-Loop Block vulnerability discovered by ? in WordPress Npm vm2 versions = 3.11.6...

vm2: timeout Option Bypass via FinalizationRegistry Cleanup Callback (Unbounded Host Event-Loop Block)

Vulnerability Summary vm2's VM timeout option is documented and relied upon as the mechanism that bounds how long sandboxed code may execute. In the current implementation, the timeout only wraps the single synchronous call to VMrun via doWithTimeout → this.runScriptscript in lib/vm.js. It does...

EUVD-2026-81592

vm2: timeout Option Bypass via FinalizationRegistry Cleanup Callback Unbounded Host Event-Loop Block...

GHSA-R4FX-V8HH-22MV vm2: timeout Option Bypass via FinalizationRegistry Cleanup Callback (Unbounded Host Event-Loop Block)

Vulnerability Summary vm2's VM timeout option is documented and relied upon as the mechanism that bounds how long sandboxed code may execute. In the current implementation, the timeout only wraps the single synchronous call to VMrun via doWithTimeout → this.runScriptscript in lib/vm.js. It does...

CVE-2026-92942

A flaw was found in vm2. Sandboxed code can bypass the configured timeout mechanism by using the FinalizationRegistry feature. This allows an attacker to execute a busy loop in a cleanup callback, which is invoked outside the timeout accounting. Consequently, this can block the host event loop...

Denial of Service (DoS)

Overview vm2 is a sandbox that can run untrusted code with whitelisted Node's built-in modules. Affected versions of this package are vulnerable to Denial of Service DoS through the FinalizationRegistry process. An attacker can cause the host event loop to be blocked for an unbounded period by...

Duplicate Advisory: vm2: timeout Option Bypass via FinalizationRegistry Cleanup Callback (Unbounded Host Event-Loop Block)

Duplicate Advisory This advisory has been withdrawn because it is a duplicate of GHSA-r4fx-v8hh-22mv. This link is maintained to preserve external references. Original Description vm2 before 3.11.7 affected versions = 3.11.6 does not enforce the VM timeout option on code executed outside the...

GHSA-VJCV-9J33-WJ62 Duplicate Advisory: vm2: timeout Option Bypass via FinalizationRegistry Cleanup Callback (Unbounded Host Event-Loop Block)

Duplicate Advisory This advisory has been withdrawn because it is a duplicate of GHSA-r4fx-v8hh-22mv. This link is maintained to preserve external references. Original Description vm2 before 3.11.7 affected versions = 3.11.6 does not enforce the VM timeout option on code executed outside the...

CVE-2026-92942

vm2 before 3.11.7 affected versions = 3.11.6 does not enforce the VM timeout option on code executed outside the synchronous VMrun call. The timeout only wraps the single call to runScript via doWithTimeout in lib/vm.js, and FinalizationRegistry and WeakRef are exposed to sandboxed code unmodifie...

CVE-2026-92942 vm2 before 3.11.7 Timeout Bypass via FinalizationRegistry

vm2 before 3.11.7 affected versions = 3.11.6 does not enforce the VM timeout option on code executed outside the synchronous VMrun call. The timeout only wraps the single call to runScript via doWithTimeout in lib/vm.js, and FinalizationRegistry and WeakRef are exposed to sandboxed code unmodifie...

CVE-2026-92942 vm2 before 3.11.7 Timeout Bypass via FinalizationRegistry

vm2 before 3.11.7 affected versions = 3.11.6 does not enforce the VM timeout option on code executed outside the synchronous VMrun call. The timeout only wraps the single call to runScript via doWithTimeout in lib/vm.js, and FinalizationRegistry and WeakRef are exposed to sandboxed code unmodifie...

CVE-2026-92942

vm2 before 3.11.7 (versions ≤ 3.11.6) contains a timeout bypass that allows sandboxed code to trigger denial of service. The VM({ timeout }) option only wraps the synchronous VM#run() call, while FinalizationRegistry and WeakRef are exposed to sandboxed code unmodified. An attacker can register a...

CVE-2026-92942 vm2 before 3.11.7 Timeout Bypass via FinalizationRegistry

vm2 before 3.11.7 affected versions = 3.11.6 does not enforce the VM timeout option on code executed outside the synchronous VMrun call. The timeout only wraps the single call to runScript via doWithTimeout in lib/vm.js, and FinalizationRegistry and WeakRef are exposed to sandboxed code unmodifie...

PT-2026-94314

Name of the Vulnerable Software and Affected Versions vm2 versions prior to 3.11.7 Description The software fails to enforce the timeout option for code executed outside the synchronous run function. This occurs because the timeout only wraps the runScript call via doWithTimeout in the lib/vm.js...

CVE-2026-92942: Uncontrolled Resource Consumption

vm2 before 3.11.7 affected versions = 3.11.6 does not enforce the VM timeout option on code executed outside the synchronous VMrun call. The timeout only wraps the single call to runScript via doWithTimeout in lib/vm.js, and FinalizationRegistry and WeakRef are exposed to sandboxed code unmodifie...