High severity8.5GHSA Advisory· Published May 13, 2026· Updated May 14, 2026
CVE-2026-43998
CVE-2026-43998
Description
vm2 is an open source vm/sandbox for Node.js. In 3.10.5, NodeVM's require.root path restriction can be bypassed using filesystem symlinks, allowing sandboxed code to load modules from outside the allowed root directory in host context. Because path validation uses path.resolve() (which does not dereference symlinks) but module loading uses Node's native require() (which does), an attacker can load arbitrary host-realm modules and achieve remote code execution. This vulnerability is fixed in 3.11.0.
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Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
vm2npm | >= 3.10.5, < 3.11.0 | 3.11.0 |
Affected products
3= 3.10.5+ 1 more
- (no CPE)range: = 3.10.5
- cpe:2.3:a:vm2_project:vm2:3.10.5:*:*:*:*:node.js:*:*
Patches
Vulnerability mechanics
References
4- github.com/patriksimek/vm2/security/advisories/GHSA-cp6g-6699-wx9cnvdExploitMitigationVendor AdvisoryWEB
- github.com/advisories/GHSA-cp6g-6699-wx9cghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2026-43998ghsaADVISORY
- github.com/patriksimek/vm2/releases/tag/v3.11.0ghsaWEB
News mentions
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