Is CVE-2026-56451 actively exploited?

No active exploitation of CVE-2026-56451 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-56451 be exploited remotely?

Yes. CVE-2026-56451 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-56451?

CVE-2026-56451 has a CVSS score of 10.0 (CRITICAL).

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CRITICAL

CVE-2026-56451

CWE-347Published: July 14, 2026· Updated: Jul 15, 2026

10.0

CVSS v3.1

EPSS:0.38%probability of exploitation in 30 daysPercentile:30.5th

Official 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.

NVD Source

Risk Analysis

This critical vulnerability in Opcenter X allows an unauthenticated remote attacker to forge arbitrary JSON Web Tokens (JWTs) due to improper validation of the algorithm in the JWT header. With a perfect CVSS score of 10.0, this flaw enables full unauthorized access, posing an extremely high risk, but there is no information on exploitation likelihood (EPSS) or confirmed exploitation (KEV).

No public exploit is known for this vulnerability, and it has not been confirmed as exploited by CISA. The vulnerability is remotely exploitable over the network with low attack complexity and requires no privileges or user interaction.

Recommended Action

Upgrade Opcenter X to version V2604 or later. Ensure that JWT validation properly checks the algorithm specified in the header and that robust authentication mechanisms are in place.

Generated by the CTIWATCH analysis pipeline from this CVE's metadata (CVSS, EPSS, KEV status, exploit intelligence). Verify against vendor advisories before acting.

Technical Analysis

CVE-2026-56451 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 10.0.

The vulnerability has a "Changed" scope, meaning successful exploitation can impact components beyond the vulnerable component itself — such as the host operating system or adjacent services.