Snyk Security Database

vercel-api-client is a malicious package. This package contains malicious code, and its content was removed from the official package manager. While this package might be attempting to impersonate a valid organization, there is no connection between that organization and this package authorship.

Affected versions of this package are vulnerable to Inefficient Algorithmic Complexity in the purge_kv_map function of the KV Map Handler process. An attacker can cause excessive resource consumption by triggering operations that exploit inefficient algorithmic complexity.

com.fasterxml.jackson.core:jackson-databind is a library which contains the general-purpose data-binding functionality and tree-model for Jackson Data Processor.

Affected versions of this package are vulnerable to Deserialization of Untrusted Data in the DatabindContext._resolveAndValidateGeneric() method, which validates only the raw container class of a type identifier against the configured PolymorphicTypeValidator and not its nested generic type arguments. An attacker who controls the type identifier can instantiate a denied class, and reach unauthenticated remote code execution through an available gadget, by embedding that class as a generic parameter of an allowlisted container such as java.util.ArrayList<com.evil.Gadget>, which passes validation while the nested type is loaded, instantiated, and populated with attacker-controlled values. Exploitation requires polymorphic type validation to be enabled with a configured validator, the application to deserialize untrusted JSON, and a suitable gadget class on the classpath.