cve-2025-2559
Vulnerability from cvelistv5
Published
2025-03-25 08:20
Modified
2025-03-31 16:31
Severity ?
4.9 (Medium) - CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
Summary
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.
References
secalert@redhat.comhttps://access.redhat.com/security/cve/CVE-2025-2559
secalert@redhat.comhttps://bugzilla.redhat.com/show_bug.cgi?id=2353868
Impacted products
Vendor Product Version
Red Hat Red Hat Build of Keycloak     cpe:/a:redhat:build_keycloak:
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   Red Hat Red Hat Single Sign-On 7     cpe:/a:redhat:red_hat_single_sign_on:7
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