Prototype Pollution Protection Bypass in qs
High severity
GitHub Reviewed
Published
Apr 30, 2020
to the GitHub Advisory Database
•
Updated Jan 9, 2023
Package
Affected versions
< 6.0.4
>= 6.1.0, < 6.1.2
>= 6.2.0, < 6.2.3
>= 6.3.0, < 6.3.2
Patched versions
6.0.4
6.1.2
6.2.3
6.3.2
Description
Reviewed
Apr 30, 2020
Published to the GitHub Advisory Database
Apr 30, 2020
Last updated
Jan 9, 2023
Affected version of
qsare vulnerable to Prototype Pollution because it is possible to bypass the protection. Theqs.parsefunction fails to properly prevent an object's prototype to be altered when parsing arbitrary input. Input containing[or]may bypass the prototype pollution protection and alter the Object prototype. This allows attackers to override properties that will exist in all objects, which may lead to Denial of Service or Remote Code Execution in specific circumstances.Recommendation
Upgrade to 6.0.4, 6.1.2, 6.2.3, 6.3.2 or later.
References