A flaw was found in Keycloak. When the configuration uses JWT tokens for authentication, the tokens are cached until expiration. If a client uses JWT tokens with an excessively long expiration time, for example, 24 or 48 hours, the cache can grow indefinitely, leading to an OutOfMemoryError. This issue could result in a denial of service condition, preventing legitimate users from accessing the system.
{ "nvd_published_at": "2025-03-25T09:15:17Z", "cwe_ids": [ "CWE-770" ], "severity": "MODERATE", "github_reviewed": true, "github_reviewed_at": "2025-03-25T16:50:25Z" }