External risk intelligence

Data Space Portal allows attackers to take control of customer data.

CVE advisorySeverity: CRITICAL (CVSS 10.0)

CVE-2026-42160

A critical flaw in Data Space Portal allows unauthorized access to customer data through a loophole in account registration. This issue is now urgent as it could enable attackers to take control of sensitive information.

4Halo Surface Signal

External exposure likelihood

Halo Surface Signal score for CVE-2026-42160

The product is a web-based portal designed for external organizational and user account management. Its functionality relies on self-registration workflows, which are commonly deployed as internet-facing web applications to enable public or partner accessibility for dataspace operations.

Horizon Alert

Summary of the vulnerability and why it matters

An authorization flaw exists in the Data Space Portal backend that could allow unauthorized access to organization and user account data. This issue affects self-registered accounts that are in a "PENDING" status and could lead to significant data compromise.

  • Critical severity allows full system compromise.
  • Reachable from the internet.
  • Affects self-registered pending accounts.

Attack Path

How an attacker could exploit the issue

An unauthenticated attacker can abuse insufficient authorization in Data Space Portal to create a "PENDING" organization or user account, effectively gaining unauthorized access. This could allow them to impersonate legitimate entities within the dataspace and potentially access sensitive information or disrupt operations.

  • Attacker needs no credentials.
  • Targets self-registration feature.
  • Exploits "PENDING" account status.

Live Threat

Current exploitation, exposure, and threat context

Attackers will likely target this vulnerability due to its presence in a web-facing SaaS portal managing organizational and user accounts. The insufficient authorization flaw allows for the creation of unauthorized accounts within the system. This type of vulnerability is attractive because it can be exploited remotely without requiring prior user interaction or authentication.

  • Remote exploitation without authentication.
  • Publicly accessible account management function.
  • Patch available, but exploit potential is high.

Priority actions

Operational Fix

Recommended remediation, mitigation, and detection steps

Teams should prioritize patching the Data Space Portal to version 7.3.2 to address critical authorization vulnerabilities. If immediate patching is not feasible, implement strict access controls and monitor logs for suspicious account creation or modification activities.

  • Upgrade to version 7.3.2.
  • Restrict access; monitor logs.
  • Verify user account activity.

Frequently asked questions

What is the Data Space Portal and what is it used for?

The Data Space Portal is an open-source Software as a Service (SaaS) solution used to manage dataspace operations. It helps organizations streamline how they handle data exchange and related processes within a dataspace environment.

What type of weakness does CVE-2026-42160 represent in the Data Space Portal?

CVE-2026-42160 is classified as an insufficient authorization vulnerability. This means that the system does not properly verify if a user or process has the necessary permissions before allowing them to perform certain actions, specifically related to self-registered "PENDING" organization and user accounts.

How could an attacker exploit the Data Space Portal vulnerability?

An attacker could exploit this flaw by abusing the insufficient authorization in the portal's backend. This would allow them to create a "PENDING" organization or user account without proper credentials, potentially leading to unauthorized access and control over data within the dataspace.

Who should be concerned about the Data Space Portal vulnerability?

Organizations using the Data Space Portal, especially those with internet-facing instances for external or partner access, should be concerned. The vulnerability is classified as external, meaning it can be reached from the internet, posing a risk to data managed by the portal.

What is the first step to address the Data Space Portal vulnerability?

The primary step is to update the Data Space Portal to version 7.3.2 or later, as this version includes a patch for the authorization vulnerability. If immediate patching isn't possible, teams should enhance access controls and closely monitor system logs for any suspicious account-related activities.

References