The JWT authentication mechanism accepts tokens signed with algorithms other than those explicitly configured or supported. This allows an attacker to craft a JWT with an unsupported algorithm, which is then incorrectly validated, leading to unauthorized access. Successful exploitation of this vulnerability may result in unauthorized access to the system, including the potential compromise of administrative accounts and full account takeover. The CVSS score is adjusted to 9.8 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H) in single-tenant deployments, reflecting that the impact is contained within a single security authority boundary.
Este es el aviso número 2 sobre productos WSO2 en pwned.cl.
| CVE | CVE-2026-5430 |
|---|---|
| Severidad | CRITICAL |
| CVSS | 10.0 / 10 |
| EPSS | 0.4% en 30 días (percentil 29) |
| CWE | CWE-347 |
| CISA KEV | Explotación activa confirmada |
| Exposición (Shodan) | sin hosts expuestos detectados actualmente |
| PoC público | github.com |
Productos afectados (catálogo NVD)
wso2/api_control_planewso2/api_managerwso2/traffic_managerwso2/universal_gateway