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
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Siemens | Opcenter X | < V2604 | V2604 |
Advisories 3
- ICSA-26-202-03 Siemens Opcenter X CISA ICS & IT advisories · Jul 21, 2026
- NCSC-2026-0229 Kwetsbaarheden verholpen in Siemens producten NCSC-NL (Netherlands) · Jul 14, 2026
- SSA-096828 SSA-096828: Token Invalidation Vulnerability in Opcenter X Before V2604 Siemens ProductCERT · Jul 14, 2026