What’s Vulnerable › Vulnerabilities

CVE-2023-29199: vm2 Sandbox escape vulnerability

• Severity: critical (CVSS 10.0 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 3.9% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2023-04-14 · updated 2026-06-17
• Weakness: CWE-913

Description

There exists a vulnerability in source code transformer (exception sanitization logic) of vm2 for versions up to 3.9.15, allowing attackers to bypass `handleException()` and leak unsanitized host exceptions which can be used to escape the sandbox and run arbitrary code in host context. A threat actor can bypass the sandbox protections to gain remote code execution rights on the host running the sandbox. This vulnerability was patched in the release of version `3.9.16` of `vm2`.

Affected products

• patriksimek vm2: before 3.9.16 — fixed in 3.9.16

How to fix

Upgrade to a fixed version: patriksimek vm2 3.9.16. Check the vendor advisory for mitigations.

References

• https://gist.github.com/leesh3288/f05730165799bf56d70391f3d9ea187c
• https://github.com/patriksimek/vm2/commit/24c724daa7c09f003e556d7cd1c7a8381cb985d7
• https://github.com/patriksimek/vm2/issues/516
• https://github.com/patriksimek/vm2/releases/tag/3.9.16
• https://github.com/patriksimek/vm2/security/advisories/GHSA-xj72-wvfv-8985
• https://gist.github.com/leesh3288/f05730165799bf56d70391f3d9ea187c
• https://github.com/patriksimek/vm2/commit/24c724daa7c09f003e556d7cd1c7a8381cb985d7
• https://github.com/patriksimek/vm2/issues/516
• https://github.com/patriksimek/vm2/releases/tag/3.9.16
• https://github.com/patriksimek/vm2/security/advisories/GHSA-xj72-wvfv-8985

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