| ID |
CVE-2026-18206
|
| Sažetak |
A flaw was found in the keycloak-services component of Keycloak, which provides identity and access management services. The issue occurs when a realm administrator uses a wildcard domain (like *.example.com) to restrict which hosts can register or update clients. Due to improper validation, the system accepts any hostname that ends with the specified domain suffix, even if it is not a legitimate subdomain. An attacker who can control the reverse DNS of their connection can bypass these host-based restrictions, potentially allowing unauthorized client modifications. |
| Reference |
|
| CVSS |
| Base: | 3.7 |
| Impact: | 1.4 |
| Exploitability: | 2.2 |
|
| Pristup |
| Vektor | Složenost | Autentikacija |
| NETWORK |
HIGH |
NONE |
|
| Impact |
| Povjerljivost | Cjelovitost | Dostupnost |
| NONE |
LOW |
NONE |
|
| CVSS vektor |
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N |
| Zadnje važnije ažuriranje |
07-08-2026 - 14:54 |
| Objavljeno |
31-07-2026 - 08:16 |
