BIT-keycloak-2026-16100

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Import Source
https://github.com/bitnami/vulndb/tree/main/data/keycloak/BIT-keycloak-2026-16100.json
JSON Data
https://api.osv.dev/v1/vulns/BIT-keycloak-2026-16100
Aliases
  • CVE-2026-16100
Published
2026-08-25T11:41:46Z
Modified
2026-09-08T08:48:06Z
Summary
Keycloak-services: keycloak-services: unbounded metric cardinality in user event metrics via request-controlled error text
Details

A flaw was found in the user-event metrics recording of Keycloak. When metrics are enabled, the system records raw error messages from failed account operations as Prometheus metric labels. Because these error messages can include user-supplied input like nonexistent client IDs, an authenticated user can create a massive number of unique metric entries, eventually exhausting system memory and causing the service to crash or become unavailable.

Database specific
{
    "cpes": [
        "cpe:2.3:a:redhat:build_of_keycloak:*:*:*:*:*:*:*:*",
        "cpe:2.3:a:keycloak:keycloak:*:*:*:*:*:*:*:*"
    ],
    "severity": "Medium"
}
References

Affected packages

Bitnami / keycloak

Package

Name
keycloak
Purl
pkg:bitnami/keycloak

Severity

  • 6.5 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS Calculator

Affected ranges

Type
SEMVER
Events
Introduced
26.6.0
Fixed
26.6.5

Database specific

source
"https://github.com/bitnami/vulndb/tree/main/data/keycloak/BIT-keycloak-2026-16100.json"