CVE-2026-43997: vm2 Access to Host Object Enables Sandbox Escape

May 7, 2026

It is possible to obtain the host Object, https://github.com/patriksimek/vm2/commit/ebcfe94ad2f864f0bc35e78cff1d921107cfd160 added some protections, but the implementation is incomplete.

References

github.com/advisories/GHSA-47x8-96vw-5wg6
github.com/patriksimek/vm2
github.com/patriksimek/vm2/releases/tag/v3.11.0
github.com/patriksimek/vm2/security/advisories/GHSA-47x8-96vw-5wg6
nvd.nist.gov/vuln/detail/CVE-2026-43997

Code Behaviors & Features

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