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.

CVSS v3 3.7 LOW

3.7^/10

CVSS v3 : LOW

Vector :

Exploitability : 2.2 / Impact : 1.4

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact LOW

Scope UNCHANGED

References

Link	Resource
https://access.redhat.com/security/cve/CVE-2026-101333
https://bugzilla.redhat.com/show_bug.cgi?id=2542498

Configurations

No configuration.

History

28 Sep 2026, 15:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-09-28 15:17

Updated : 2026-09-28 16:26

NVD link : CVE-2026-101333

Mitre link : CVE-2026-101333

CVE.ORG link : CVE-2026-101333

JSON object : View

Products Affected

No product.

CWE

CWE-770

Allocation of Resources Without Limits or Throttling

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