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.
{ "nvd_published_at": "2022-12-27T22:15:00Z", "cwe_ids": [ "CWE-668" ], "severity": "HIGH", "github_reviewed": true, "github_reviewed_at": "2022-12-30T19:33:01Z" }