CVE-2026-5430
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.
Explotada activamente
- En el catálogo CISA de vulnerabilidades explotadas desde el 24 sept 2026
- Las agencias federales de EE. UU. deben corregirla antes del 27 sept 2026 (BOD 22-01)
- Primer ataque observado 40 días después de la divulgación
Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.
Fuente: CISA KEV · 24 sept 2026 15 sept 2026
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:HProductos afectados
| Fabricantes | Producto | Versiones |
|---|---|---|
| wso2 | api control plane | < 4.5.0.58 |
| wso2 | api manager | < 4.1.0.257 |
| wso2 | traffic manager | < 4.5.0.56 |
| wso2 | universal gateway | < 4.5.0.57 |
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This product uses the NVD API but is not endorsed or certified by the NVD.