CVE-2025-2559

Published Mar 25, 2025

Last updated 8 days ago

Overview

Description
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.
Source
secalert@redhat.com
NVD status
Awaiting Analysis

Risk scores

CVSS 3.1

Type
Primary
Base score
4.9
Impact score
3.6
Exploitability score
1.2
Vector string
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
Severity
MEDIUM

Weaknesses

secalert@redhat.com
CWE-770

Social media

Hype score
Not currently trending