In vm2 for versions up to 3.9.19, Node.js custom inspect function allows attackers to escape the sandbox and run arbitrary code.
Remote Code Execution, assuming the attacker has arbitrary code execution primitive inside the context of vm2 sandbox.
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PoC is to be disclosed on or after the 5th of September.
While this advisory might look similar to CVE-2023-37466, it is a completely different way of escaping the sandbox.
If you have any questions or comments about this advisory:
Thanks to Xion (SeungHyun Lee) of KAIST Hacking Lab for disclosing this vulnerability.