THREAT WATCH
High Microsoft Active Directory Federation Services: CVE-2026-56155 — Microsoft Active Directory Federation Services Insufficient Granularity of Access Control Vulnerability Medium Microsoft SharePoint Server: CVE-2026-56164 — Microsoft SharePoint Server Missing Authentication for Critical Function Vulnerability Actively Exploited SonicWall SMA1000 Appliances: CVE-2026-15409 — SonicWall SMA1000 Appliances Server-Side Request Forgery Vulnerability Actively Exploited SonicWall SMA1000 Appliances: CVE-2026-15410 — SonicWall SMA1000 Appliances Code Injection Vulnerability Medium Cisco IOS: CVE-2008-4128 — Cisco IOS Cross-Site Request Forgery Vulnerability Critical Balbooa Forms: CVE-2026-56291 — Balbooa Forms Unrestricted Upload of File with Dangerous Type Vulnerability Critical iCagenda iCagenda: CVE-2026-48939 — iCagenda Unrestricted Upload of File with Dangerous Type Vulnerability Critical JoomShaper SP Page Builder: CVE-2026-48908 — JoomShaper SP Page Builder Unrestricted Upload of File with Dangerous Type Vulnerability High Microsoft Active Directory Federation Services: CVE-2026-56155 — Microsoft Active Directory Federation Services Insufficient Granularity of Access Control Vulnerability Medium Microsoft SharePoint Server: CVE-2026-56164 — Microsoft SharePoint Server Missing Authentication for Critical Function Vulnerability Actively Exploited SonicWall SMA1000 Appliances: CVE-2026-15409 — SonicWall SMA1000 Appliances Server-Side Request Forgery Vulnerability Actively Exploited SonicWall SMA1000 Appliances: CVE-2026-15410 — SonicWall SMA1000 Appliances Code Injection Vulnerability Medium Cisco IOS: CVE-2008-4128 — Cisco IOS Cross-Site Request Forgery Vulnerability Critical Balbooa Forms: CVE-2026-56291 — Balbooa Forms Unrestricted Upload of File with Dangerous Type Vulnerability Critical iCagenda iCagenda: CVE-2026-48939 — iCagenda Unrestricted Upload of File with Dangerous Type Vulnerability Critical JoomShaper SP Page Builder: CVE-2026-48908 — JoomShaper SP Page Builder Unrestricted Upload of File with Dangerous Type Vulnerability

CVE-2026-56451 — A vulnerability has been identified in Opcenter X…

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Critical CVSS 10 Recently disclosed · NVD

CVE-2026-56451 — A vulnerability has been identified in Opcenter X…

CVE-2026-56451 Published Jul 14, 2026
TL;DR

CVE-2026-56451 — A vulnerability has been identified in Opcenter X… has a recently disclosed critical-severity vulnerability (CVE-2026-56451). It has not been reported as actively exploited — patch it proactively as part of your normal cycle before that changes.

What is this 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.

How it works

This is classified as CWE-347. In plain terms, an attacker could use this flaw in the affected product to gain access, disrupt service, or steal data — the exact impact depends on how it’s deployed in your environment.

CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

Mitigations

  • Apply the vendor’s security patch or update as soon as it’s available and tested.
  • If no patch exists yet, apply the vendor’s temporary workaround.
  • Limit network exposure of the affected system until it’s patched.
  • Track the vendor advisory — disclosed vulnerabilities can move to active exploitation quickly.

Recommendations

  • Confirm whether this vendor’s affected product is used anywhere in your environment.
  • Patch internet-facing systems first, then internal ones.
  • Prioritise by exposure and exploitability while a fix is scheduled.
  • Subscribe to the vendor’s security advisories for earlier warning next time.

Compiled from the National Vulnerability Database (NVD), referenced in 1 public advisories. Listed as recently disclosed — not confirmed exploited.