vm2: Host-returned Promise rejection can bypass vm2's unhandled-rejection hardening and terminate the host process

Summary vm2 current head v3.11.5, commit 7a1f5100b96f48d34e0fe104ab37c0acc5944f92 can still be used to terminate the host Node.js process when sandbox code calls a host-realm function that returns a rejected host Promise and then ignores the returned value. This is an incomplete-fix variant of th...

GHSA-GJQ8-XM47-88RC vm2: Host-returned Promise rejection can bypass vm2's unhandled-rejection hardening and terminate the host process

Summary vm2 current head v3.11.5, commit 7a1f5100b96f48d34e0fe104ab37c0acc5944f92 can still be used to terminate the host Node.js process when sandbox code calls a host-realm function that returns a rejected host Promise and then ignores the returned value. This is an incomplete-fix variant of th...

EUVD-2026-82901

vm2 npm versions 3.12.0 and earlier contain a sandbox escape in VM and NodeVM. When an embedder exposes a host API that returns a host-realm Promise, the bridge's rejection sanitizer hostPromiseSanitizeReject / makeSanitizedPromiseCallback / normalizeHostPromiseCallbacks in lib/bridge.js only wra...

CVE-2026-92954 vm2 3.10.0 through 3.11.7 Denial of Service via Host Promise

vm2 is a sandbox library for running untrusted JavaScript in Node.js. In versions = 3.10.0 and = 3.11.7, Promises returned from the host realm into the sandbox are not marked as handled at the bridge boundary; only Promises created inside the sandbox are wrapped with a rejection-swallowing handle...

PT-2026-105475

Duplicate Advisory This advisory has been withdrawn because it is a duplicate of GHSA-647f-g98j-qq25. This link is maintained to preserve external references. Original Description vm2 3.11.6 is vulnerable to a sandbox escape leading to remote code execution in the host Node.js process. The fix fo...

CVE-2026-44000

vm2 is an open source vm/sandbox for Node.js. Prior to 3.11.0, a sandbox boundary violation in vm2 allows host object identity to cross into the sandbox through host Promise resolution. When a host-side Promise that resolves to a host object is exposed to the sandbox, the value delivered to the...

CVE-2026-44000 vm2: sandbox boundary bypass via host Promise resolution preserving host object identity

vm2 is an open source vm/sandbox for Node.js. Prior to 3.11.0, a sandbox boundary violation in vm2 allows host object identity to cross into the sandbox through host Promise resolution. When a host-side Promise that resolves to a host object is exposed to the sandbox, the value delivered to the...

CVE-2026-44000: Protection Mechanism Failure

vm2 is an open source vm/sandbox for Node.js. Prior to 3.11.0, a sandbox boundary violation in vm2 allows host object identity to cross into the sandbox through host Promise resolution. When a host-side Promise that resolves to a host object is exposed to the sandbox, the value delivered to the...