Org.keycloak.services.resources.organizations: keycloak: unauthorized organization registration via improper invitation token validation (Red Hat Red Hat build of Keycloak 26.2)
En bref
- Source
- NVD
- EPSS
- EPSS 0.49 % · centile 42 ()
- État
- PUBLISHED
- Publiée
- Mise à jour
- Attribuée par
- redhat
- Statut NVD
- Deferred
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Description
A flaw was found in Keycloak. An attacker can exploit this vulnerability by modifying the organization ID and target email within a legitimate invitation token's JSON Web Token (JWT) payload. This lack of cryptographic signature verification allows the attacker to successfully self-register into an unauthorized organization, leading to unauthorized access.
Faiblesses (CWE)
- CWE-347 — Vérification incorrecte d'une signature cryptographique
Références
- https://access.redhat.com/errata/RHSA-2026:2363
- https://access.redhat.com/errata/RHSA-2026:2364
- https://access.redhat.com/errata/RHSA-2026:2365
- https://access.redhat.com/errata/RHSA-2026:2366
- https://access.redhat.com/security/cve/CVE-2026-1529
- https://bugzilla.redhat.com/show_bug.cgi?id=2433783
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-1529.json
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 | redhat-SADP |
| 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) |
| 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 · 0b0ca135-0b70-47e7-9f44-1890c2a1c46c (Secondary) |
Avis
- GHSA-hcvw-475w-8g7p — Keycloak affected by improper invitation token validation
Références européennes
- ENISA EUVD · EUVD-2026-6891
- GCVE · GCVE-0-2026-1529
Avis du CERT-FR
- CERTFR-2026-AVI-0159 — Multiples vulnérabilités dans Keycloak · cert.ssi.gouv.fr
Produits affectés
| Produit | Versions |
|---|---|
| Red Hat · Red Hat build of Keycloak 26.2 | unaffected 26.2.13-1 < * |
| Red Hat · Red Hat build of Keycloak 26.2 | unaffected 26.2-15 < * |
| Red Hat · Red Hat build of Keycloak 26.2 | unaffected 26.2-15 < * |
| Red Hat · Red Hat build of Keycloak 26.2.13 | |
| Red Hat · Red Hat build of Keycloak 26.4 | unaffected 26.4.9-1 < * |
| Red Hat · Red Hat build of Keycloak 26.4 | unaffected 26.4-11 < * |
| Red Hat · Red Hat build of Keycloak 26.4 | unaffected 26.4-10 < * |
| Red Hat · Red Hat build of Keycloak 26.4.9 |
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 |