4.9

CVE-2025-2559

Org.keycloak/keycloak-services: jwt token cache exhaustion leading to denial of service (dos) in keycloak

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.
Daten sind bereitgestellt durch das CVE Programm von einer CVE Numbering Authority (CNA) (Unstrukturiert).
Collection URLhttps://github.com/keycloak/keycloak/
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Paket keycloak
Default Statusunaffected
Version 23.0.0
Version < 26.0.11
Status affected
Version 26.1.0
Version < 26.1.5
Status affected
HerstellerRed Hat
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Produkt Red Hat Build of Keycloak
Default Statusunaffected
HerstellerRed Hat
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Produkt Red Hat build of Keycloak 26.0
Default Statusaffected
Version 26.0.11-2
Version < *
Status unaffected
HerstellerRed Hat
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Produkt Red Hat build of Keycloak 26.0
Default Statusaffected
Version 26.0-12
Version < *
Status unaffected
HerstellerRed Hat
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Produkt Red Hat build of Keycloak 26.0
Default Statusaffected
Version 26.0-13
Version < *
Status unaffected
HerstellerRed Hat
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Produkt Red Hat Single Sign-On 7
Default Statusaffected
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.03% 0.071
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
secalert@redhat.com 4.9 1.2 3.6
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
CWE-770 Allocation of Resources Without Limits or Throttling

The product allocates a reusable resource or group of resources on behalf of an actor without imposing any restrictions on the size or number of resources that can be allocated, in violation of the intended security policy for that actor.