CVE-2026-16102
Keycloak-services: keycloak-services: default dcr policy allows role forgery via user property mappers
HIGH 8.1
En bref
- Source
- NVD
- EPSS
- EPSS 0.46 % · centile 40 ()
- État
- PUBLISHED
- Publiée
- Mise à jour
- Attribuée par
- redhat
- Statut NVD
- Modified
Description
A flaw was found in the Dynamic Client Registration (DCR) component of Keycloak, an identity and access management solution. The default DCR policy fails to properly validate the claim path for User Property mappers, allowing them to write values to sensitive internal claim locations. An attacker with a standard user account and a limited Initial Access Token can exploit this to forge administrative roles in their access token. This allows the attacker to take over other clients, steal confidential secrets, and potentially gain full administrative control over the realm.
Faiblesses (CWE)
Références
Scores
| Version | Score | Vecteur | Évalué par |
|---|---|---|---|
| CVSS 3.1 | HIGH 8.1 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N | redhat |
| CVSS 3.1 | HIGH 8.1 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N | NVD · secalert@redhat.com (Secondary) |
Références européennes
- ENISA EUVD · EUVD-2026-53382
- GCVE · GCVE-0-2026-16102
Avis du CERT-FR
- CERTFR-2026-AVI-0976 — Multiples vulnérabilités dans KeyCloak · cert.ssi.gouv.fr
Configurations affectées (CPE NVD)
cpe:2.3:a:redhat:build_of_keycloak:*:*:*:*:*:*:*:*≥ 26.4 < 26.4.14cpe:2.3:a:redhat:build_of_keycloak:*:*:*:*:*:*:*:*≥ 26.6 < 26.6.5cpe:2.3:a:redhat:data_grid:8.0:*:*:*:*:*:*:*cpe:2.3:a:redhat:jboss_enterprise_application_platform_expansion_pack:-:*:*:*:*:*:*:*cpe:2.3:a:redhat:single_sign-on:7.0:*:*:*:*:*:*:*
Produits affectés
| Produit | Versions |
|---|---|
| Red Hat · Red Hat build of Keycloak 26.4 | unaffected 26.4.14-1 < * |
| Red Hat · Red Hat build of Keycloak 26.4 | unaffected 26.4-22 < * |
| Red Hat · Red Hat build of Keycloak 26.4 | unaffected 26.4-22 < * |
| Red Hat · Red Hat build of Keycloak 26.4.14 | |
| Red Hat · Red Hat build of Keycloak 26.4.14 | |
| Red Hat · Red Hat build of Keycloak 26.6 | unaffected 26.6.5-1 < * |
| Red Hat · Red Hat build of Keycloak 26.6 | unaffected 26.6-11 < * |
| Red Hat · Red Hat build of Keycloak 26.6 | unaffected 26.6-11 < * |
| Red Hat · Red Hat build of Keycloak 26.6.5 | |
| Red Hat · Red Hat build of Keycloak 26.6.5 | |
| Red Hat · Red Hat build of Keycloak 26.6.5 | |
| Red Hat · Red Hat Data Grid 8 | |
| Red Hat · Red Hat JBoss Enterprise Application Platform Expansion Pack | |
| Red Hat · Red Hat Single Sign-On 7 |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| CERT-FR (ANSSI) | Licence Ouverte / Etalab 2.0 |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |