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org.webjars.npm:merge-deep@3.0.2 vulnerabilities

  • latest version

    3.0.3

  • latest non vulnerable version

    3.0.3

  • first published

    4 years ago

  • latest version published

    1 years ago

  • licenses detected

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    Direct Vulnerabilities

    Known vulnerabilities in the org.webjars.npm:merge-deep package. This does not include vulnerabilities belonging to this package’s dependencies.

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    VulnerabilityVulnerable Version
    • H
    Prototype Pollution

    org.webjars.npm:merge-deep is a recursively merges values in a javascript object.

    Affected versions of this package are vulnerable to Prototype Pollution. Merge-deep actively attempts to prevent prototype pollution by blocking object property merges into __proto__, however it still allows for prototype pollution of Object.prototype via a constructor payload.

    PoC

    var mergeDeep = require("merge-deep");
var payload = '{"constructor": {"prototype": {"isAdmin": true}}}';
mergeDeep({}, JSON.parse(payload));

    How to fix Prototype Pollution?

    Upgrade org.webjars.npm:merge-deep to version 3.0.3 or higher.

    [,3.0.3)
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