CVE-2026-56451: Critical severity Opcenter X vulnerability
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 Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
Opcenter Xto a version that resolves this vulnerability.Fixed in V2604
Event History
Frequently Asked Questions
What is the severity of CVE-2026-56451?
The severity of CVE-2026-56451 is classified as critical with a score of 10.
How do I fix CVE-2026-56451?
To fix CVE-2026-56451, upgrade to Opcenter X version V2604 or later.
What types of attacks can CVE-2026-56451 enable?
CVE-2026-56451 can enable unauthenticated remote attackers to forge arbitrary JSON Web Tokens and bypass authentication.
Which versions of Opcenter X are affected by CVE-2026-56451?
All versions of Opcenter X prior to V2604 are affected by CVE-2026-56451.
What is the impact of CVE-2026-56451 on security?
CVE-2026-56451 can lead to complete compromise of the system's authentication mechanisms.