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Vulnerability RTAF-3379


OutSystems became aware of a vulnerability that, if exploited, may allow an attacker to compromise the confidentiality of the end user data. OutSystems doesn't have any indication or reason to believe that this vulnerability has been exploited in the wild.

Technology stacks

This vulnerability affects all supported Platform Server stacks and LifeTime.

Vulnerability risk

Base Score: 7.4 (High)

Vector String: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:N


To understand the phases involved in the process, how, and when we communicate, check this article. This vulnerability is currently on the embargo phase.

  • Embargo phase: This vulnerability was first communicated to all customers on September 24, 2020.
  • Public disclosure: Full details on this vulnerability will be disclosed on December, 2020.

Vulnerability details

This vulnerability is on the embargo phase. OutSystems will only disclose further details on December, 2020.

Protecting your OutSystems installation

The necessary actions to protect against this vulnerability may differ depending on the deployment model (OutSystems cloud or self managed) and the version. Please check the following sections for the action that applies to your environments.

OutSystems cloud

OutSystems notified all its cloud customers and will apply a hotfix targeted at the specific version of each environment. The hotfix won't require an update of the Platform Server version but it will require downtime. You'll receive a schedule for the hotfix that will include the period of downtime in each environment.

Self managed installations

OutSystems released new versions of the Platform Server that address this vulnerability. All customers who have yet to update their Platform servers are encouraged to do so.

OutSystems 10

Platform Server release 10.0.1106.0 addresses this vulnerability. All subsequent releases will be protected.

OutSystems 11

Platform Server release 11.9.1 and LifeTime Management Console 11.7.3 address this vulnerability. All subsequent releases will be protected.


There is no workaround, we strongly advise you to update to the above mentioned versions.


Question Answer
By exploiting this vulnerability can an attacker access my data? Yes. By exploiting this vulnerability, an attacker will have partial access to data stored by the OutSystems Platform.
Has this vulnerability been exploited in the wild? OutSystems doesn't have any evidence that this vulnerability has been exploited in the wild or that any customer was affected.
What do I need to do? Update your OutSystems Platform Server to the above-mentioned version that applies. For cloud environments, OutSystems will patch the environments for you.
Who can I talk to about this? If you have any questions, contact your Customer Success Manager. If you don’t have one, contact us via our support channels.
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