CVE-2022-37266: Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')

September 15, 2022 (updated September 19, 2022)

Prototype pollution vulnerability in function extend in babel.js in stealjs steal 2.2.4 via the key variable in babel.js.

References

github.com/stealjs/steal/blob/c9dd1eb19ed3f97aeb93cf9dcea5d68ad5d0ced9/ext/babel.js
github.com/stealjs/steal/blob/c9dd1eb19ed3f97aeb93cf9dcea5d68ad5d0ced9/ext/babel.js
github.com/stealjs/steal/issues/1535
nvd.nist.gov/vuln/detail/CVE-2022-37266

Code Behaviors & Features

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