An unconstrained memory consumption vulnerability was discovered in Keycloak. It can be triggered in environments which have millions of offline tokens (> 500,000 users with each having at least 2 saved sessions). If an attacker creates two or more user sessions and then open the "consents" tab of the admin User Interface, the UI attempts to load a huge number of offline client sessions leading to excessive memory and CPU consumption which could potentially crash the entire system.
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No Fix Known
No patch has been released yet. Apply workarounds or mitigations where available.
| Vendor | Product | Versions | Fixed In |
|---|---|---|---|
| redhat | keycloak | 21.0.0 | - |
| redhat | single_sign-on | - | - |
| redhat | single_sign-on | - |
Published
CVE disclosed publicly
Last Modified
Most recent update
Indexed to CVEInsight
Added to this platform
AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
9
Affected Products
16
References
redhat / keycloak
| - |
| redhat | openshift_container_platform | - | - |
| redhat | openshift_container_platform | - | - |
| redhat | openshift_container_platform_for_power | - | - |
| redhat | openshift_container_platform_for_power | - | - |
| redhat | openshift_container_platform_for_ibm_linuxone | - | - |
| redhat | openshift_container_platform_for_ibm_linuxone | - | - |
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
Exploitability
Impact