Nixpkgs security tracker
Untriaged
Permalink
CVE-2026-47210
9.8 CRITICAL
- CVSS version (CVSS): 3.1
- Attack Vector (AV): Network (N)
- Attack Complexity (AC): Low (L)
- Privileges Required (PR): None (N)
- User Interaction (UI): None (N)
- Scope (S): Unchanged (U)
- Confidentiality (C): High (H)
- Integrity (I): High (H)
- Availability (A): High (H)
- Modified Attack Vector (MAV): Network (N)
- Modified Attack Complexity (MAC): Low (L)
- Modified Privileges Required (MPR): None (N)
- Modified User Interaction (MUI): None (N)
- Modified Confidentiality (MC): High (H)
- Modified Scope (MS): Unchanged (U)
- Modified Integrity (MI): High (H)
- Modified Availability (MA): High (H)
Activity log
- Created suggestion
vm2 sandbox escape via JSPI-backed Promise `.finally()` species bypass
vm2 is an open source vm/sandbox for Node.js. Prior to version 3.11.4, a sandbox escape vulnerability in vm2 allows arbitrary code execution in the host process when untrusted code is executed with async support on runtimes exposing WebAssembly JSPI (WebAssembly.promising / WebAssembly.Suspending). In the tested configuration, a JSPI-backed Promise can reach Promise.prototype.finally() in a way that bypasses the expected Promise-species hardening and exposes a host-originated rejection object to attacker-controlled species logic, breaking the sandbox boundary. This issue has been patched in version 3.11.4.
References
-
https://github.com/patriksimek/vm2/security/advisories/GHSA-6j2x-vhqr-qr7q exploitx_refsource_CONFIRM
-
https://github.com/patriksimek/vm2/releases/tag/v3.11.4 x_refsource_MISC
Affected products
vm2
- ==< 3.11.4
Package maintainers
-
@ajs124 Andreas Schrägle <nix@ajs124.de>
-
@7c6f434c Michael Raskin <7c6f434c@mail.ru>