GMS-2020-519: Prototype Pollution in smart-extend

September 2, 2020 (updated September 27, 2021)

All versions of smart-extend are vulnerable to Prototype Pollution. The deep() function allows attackers to modify the prototype of Object causing the addition or modification of an existing property that will exist on all objects.

Recommendation

No fix is currently available. Consider using an alternative module until a fix is made available.

References

github.com/advisories/GHSA-f8h3-rqrm-47v9
hackerone.com/reports/438274
www.npmjs.com/advisories/801

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