| Package | Affected versions | Patched versions |
|---|---|---|
| json pattern validator | < 2.1.1 | 2.1.1 |
| jpv | < 2.1.1 | 2.1.1 |
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.
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