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CVE-2021-3918

json-schema is vulnerable to Prototype Pollution

json-schema before version 0.4.0 is vulnerable to Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution').

Patch Available

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Fix without upgrading
Vulnerability Details
Score
9.8
Score Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Affected Versions
json-schema < 0.4.0
Severity
Ecosystem
JavaScript
Publish Date
November 19, 2021
Modified Date
January 17, 2025