Critical vulnerabilities exist in several JSON Web Token (JWT) libraries – namely the JavaScript and PHP versions – that could let an attacker bypass the verification step.

Oleyarsh explains that usually, vulnerabilities related to JSON Web tokens are related to different token forging techniques that allow a malicious actor to bypass authentication and authorization ...

A report from Palo Alto Networks’ cybersecurity arm, Unit 42 outlined how the flaw would allow the server to verify a maliciously crafted JSON web token (JWT) request, thus granting the ...