CVE-2026-43997
vm2 is an open source vm/sandbox for Node.js. Prior to 3.11.0, it is possible to obtain the host Object. There are various ways to use the host Object, to escape the sandbox, one example would be using HostObject.getOwnPropertySymbols to obtain Symbol(nodejs.util.inspect.custom). This vulnerability is fixed in 3.11.0.
Weakness
vm2 is an open source vm/sandbox for Node.js. Prior to 3.11.0, it is possible to obtain the host Object. There are various ways to use the host Object, to escape the sandbox, one example would be using HostObject.getOwnPropertySymbols to obtain Symbol(nodejs.util.inspect.custom). This vulnerability is fixed in 3.11.0.
Affected products
- vm2_project vm2
References
- https://github.com/patriksimek/vm2/security/advisories/GHSA-47x8-96vw-5wg6
- https://access.redhat.com/errata/RHSA-2026:50850
- https://access.redhat.com/security/cve/CVE-2026-43997
- https://bugzilla.redhat.com/show_bug.cgi?id=2477203
- https://github.com/patriksimek/vm2/security/advisories/GHSA-47x8-96vw-5wg6
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-43997.json
Find the bug before an attacker does.
Sign in with GitHub and run your first audit in under a minute. The free plan needs no credit card.