10.0
Critical
CVE-2026-56451 A vulnerability has been identified in Opcenter X (All versions < V2604)
Description
A vulnerability has been identified in Opcenter X (All versions < V2604). Affected applications do not properly validate the algorithm specified in the JSON Web Token (JWT) header. This could allow an unauthenticated remote attacker to forge arbitrary JWT, bypass authentication mechanisms and impersonate any user including administrative accounts, potentially gaining full unauthorized access to the application.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| Opcenter X 2604 | earliest → < 2604 | 2604 |
References
- cert-portal.siemens.com cert-portal.siemens.com
Timeline
- Published
- Last modified