In jpv (aka Json Pattern Validator) before 2.1.1, compareCommon() can be bypassed because certain internal attributes can be overwritten via a conflicting name, as demonstrated by 'constructor': {'name':'Array'}. This affects validate(). Hence, a crafted payload can overwrite this builtin attribute to manipulate the type detection result.
https://github.com/CQ-Tools/CVE-2019-19507-unfixed
https://github.com/CQ-Tools/CVE-2019-19507-fixed
https://github.com/advisories/GHSA-rh46-3fgc-mvrf