CVE-2017-10862: Insufficient Data Verification in io.really:jwt-scala

The vulnerability stems from improper algorithm handling during JWT verification. The JVN advisory explicitly states the root cause is improper processing of JWT headers, particularly the 'alg' field. The decode function (JWT.decode) is responsible for signature validation but didn't properly enforce algorithm consistency between the header and verification logic. This matches common JWT vulnerabilities where the 'alg: none' attack or algorithm confusion could occur. The library's documentation shows decode is the primary verification entry point, and the CWE-345 classification confirms insufficient authenticity checks during this process.