CVE-2023-6563

Description

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.

References

• Advisories
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Details

Source: Mitre, NVD

Named Vulnerability: Allocation of Resources Without Limits in Keycloak

Risk Information

CVSS v2

CVSS v3

EPSS