CVE-2026-56451 — Siemens / Opcenter X

CVE-2026-56451

Siemens / Opcenter X PUBLISHED

Description (CNA)

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 (CNA)

Vendor / product	Versions
Siemens / Opcenter X	affected 0 before V2604

CWE

CWE-347

References

https://cert-portal.siemens.com/productcert/html/ssa-096828.html

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.