BIT-keycloak-2026-1609

See a problem?
Import Source
https://github.com/bitnami/vulndb/tree/main/data/keycloak/BIT-keycloak-2026-1609.json
JSON Data
https://api.osv.dev/v1/vulns/BIT-keycloak-2026-1609
Aliases
Published
2026-08-25T11:41:44.613Z
Modified
2026-08-26T11:15:03.475533248Z
Summary
Org.keycloak/keycloak-quarkus-server: keycloak: unauthorized access via jwt authorization grant with disabled users
Details

A flaw was found in Keycloak. When the JSON Web Token (JWT) authorization grant preview feature is enabled and a user account is disabled, Keycloak fails to validate the user’s disabled status during JWT authorization grant processing. A remote attacker with low privileges can exploit this improper access control vulnerability by presenting a valid assertion token from an external identity provider to obtain a JWT for a disabled user. This allows unauthorized access to sensitive resources.

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

Affected packages

Bitnami / keycloak

Package

Name
keycloak
Purl
pkg:bitnami/keycloak

Severity

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

Affected ranges

Type
SEMVER
Events
Introduced
26.5.2
Fixed
26.5.3

Database specific

source 
"https://github.com/bitnami/vulndb/tree/main/data/keycloak/BIT-keycloak-2026-1609.json"