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GHSA-cchq-frgv-rjh5

CriticalCVSS 9.8 / 10
Published Jul 13, 2023·Last modified Feb 3, 2026
Affected Components(0)

No affected components available

Description

In vm2 for versions up to 3.9.19, Promise handler sanitization can be bypassed, allowing attackers to escape the sandbox and run arbitrary code.

Impact

Remote Code Execution, assuming the attacker has arbitrary code execution primitive inside the context of vm2 sandbox.

Patches

None.

Workarounds

None.

References

PoC - https://gist.github.com/leesh3288/f693061e6523c97274ad5298eb2c74e9

For more information

If you have any questions or comments about this advisory:

  • Open an issue in VM2

Thanks to Xion (SeungHyun Lee) of KAIST Hacking Lab for disclosing this vulnerability.

Risk Scores
Base Score
9.8

The vulnerability can be exploited over the network without needing physical access. It is easy for an attacker to exploit this vulnerability. An attacker does not need any special privileges or access rights. No user interaction is needed for the attacker to exploit this vulnerability. The impact is confined to the system where the vulnerability exists. There is a high impact on the confidentiality of the information. There is a high impact on the integrity of the data. There is a high impact on the availability of the system.

Threat Intelligence
9.0

Active exploitation in the wild has been confirmed. Immediate patching or mitigation is required.

EPSS
3.87%

The exploit probability is very low. The vulnerability is unlikely to be exploited in the next 30 days.

Exploit
Not available

We did not find any exploit available. Neither in GitHub repositories nor in the Exploit-Database.

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