Vulnerability Report: GO-2020-0023

• CVE-2015-10004, GHSA-5vw4-v588-pgv8
• Affects: github.com/robbert229/jwt
• Published: Apr 14, 2021
• Modified: Jun 12, 2023

Token validation methods are susceptible to a timing side-channel during HMAC comparison. With a large enough number of requests over a low latency connection, an attacker may use this to determine the expected HMAC.