BIT-keycloak-2026-16442

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Import Source
https://github.com/bitnami/vulndb/tree/main/data/keycloak/BIT-keycloak-2026-16442.json
JSON Data
https://api.osv.dev/v1/vulns/BIT-keycloak-2026-16442
Aliases
  • CVE-2026-16442
Published
2026-08-25T11:41:52Z
Modified
2026-09-08T08:48:06Z
Summary
Keycloak-services: keycloak-services: saml idp-initiated broker login bypasses link-only restriction
Details

A flaw was found in the SAML broker component of Keycloak, which is used to manage identity federation and user authentication. The issue occurs because the IdP-initiated Single Sign-On endpoint fails to check if a provider is restricted to account linking only. This allows an attacker with control over a linked upstream identity to bypass login restrictions and gain full access to a local user account.

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

Affected packages

Bitnami / keycloak

Package

Name
keycloak
Purl
pkg:bitnami/keycloak

Severity

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

Affected ranges

Type
SEMVER
Events
Introduced
26.4.0
Fixed
26.4.14
Introduced
26.6.0
Fixed
26.6.5

Database specific

source 
"https://github.com/bitnami/vulndb/tree/main/data/keycloak/BIT-keycloak-2026-16442.json"