UBUNTU-CVE-2026-101333

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Source

https://ubuntu.com/security/CVE-2026-101333

Import Source

https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-101333.json

JSON Data

https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-101333

Upstream

CVE-2026-101333

Published

2026-09-28T15:17:00Z

Modified

2026-09-30T21:41:53Z

Severity

3.7 (Low) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L CVSS Calculator
Ubuntu - medium

Summary

[none]

Details

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.

References

Affected packages

Ubuntu:24.04:LTS / python-keycloak

Package

Name: python-keycloak
Purl: pkg:deb/ubuntu/python-keycloak?arch=source&distro=noble

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0 Unknown introduced version / All previous versions are affected

Affected versions

3.*

3.3.0+dfsg-2

3.9.0+dfsg-1

Ecosystem specific

{
    "binaries":  [
        {
            "binary_name":  "python3-keycloak",
            "binary_version":  "3.9.0+dfsg-1"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-101333.json"