CVE-2026-1529 — Org.keycloak.services.resources.organizations: keycloak: unauthorized organization registration via improper invitation token validation
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 …
Published: 2026-02-09 · CVSS: 8.1 · CVSS 3.1
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.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7