CVE-2025-2559
CVE-2025-2559: 1 tracked advisory record across Red Hat. Compare vendor sources and published fix guidance.
Compare the source-linked records below. Ratings and product/version details belong to each advisory; they are not a single CVE-wide score or proof that every listed product is affected. How VulniPulse collects and checks evidence.
Vendor advisory comparison
Red Hat
1 advisory- Advisory severityMedium4.9
Medium [CVE-2025-2559] Org.keycloak/keycloak-services: jwt token cache exhaustion leading to denial of service (dos) in keycloak
CVE-2025-2559Source published Source updated
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. Red Hat severity: Moderate — CVSS 4.9 (CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H). Weakness: CWE-770. Affected Red Hat products: Red Hat Build of Keycloak; Red Hat build of Keycloak 26.0; Red Hat Single Sign-On 7. Red Hat fixing advisory: RHSA-2025:4336, RHSA-2025:4335.
- Affected products in this advisory
- Red Hat build of Keycloak 26.0
- Red Hat Single Sign-On 7
- Source-reported affected versions
- Affected-version details not available in this record.
- Source-reported fixed versions
- keycloak-services
- rhbk/keycloak-operator-bundle:26.0.11-2
- rhbk/keycloak-rhel9:26.0-12
- rhbk/keycloak-rhel9-operator:26.0-13
2 more entries in the full advisory.
- Mitigation guidance
- No mitigation guidance extracted; consult the source.
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