CVE-2026-101333

A flaw was found in the Micrometer user-event metrics listener of Keycloak, a solution for integrated identity and access management. The issue occurs when the listener is configured to include the idp tag. An unauthenticated attacker can send requests to the identity broker login endpoint using arbitrary provider aliases, causing the system to create an unlimited number of metric time series. This can lead to excessive memory consumption and degrade the performance of both the server and its monitoring tools.

Score
CVSS 3.1 3.7 Low
Status
Awaiting Analysis - secalert@redhat.com
Published
2026-09-28
Last modified
2026-09-28
Weaknesses
CWE-770

Affected products

References

 
 
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