ServiceNow has disclosed a critical vulnerability, tracked as CVE-2026-6875, with a CVSS score of 9.5, that could allow unauthenticated attackers to execute code in affected ServiceNow environments. The flaw is classified as a sandbox escape vulnerability and affects both hosted and self-hosted ServiceNow deployments.
What is the threat?
CVE-2026-6875 allows threat actors to bypass intended platform restrictions and execute code under certain conditions. Because attackers do not need to authenticate before exploitation, the flaw poses a significant risk to unpatched ServiceNow instances. Successful exploitation could allow attackers to disrupt workflows, access sensitive data, and perform other malicious actions.
Why is it noteworthy?
ServiceNow is used for IT service management, workflow automation, and internal business operations. Sandbox environments are designed to isolate AI-driven processes and prevent untrusted code or inputs from reaching sensitive backend systems. If an attacker successfully escapes this containment layer, they could break out of the restricted execution environment and run malicious code directly within the platform. They would not need valid credentials to do so.
What is the exposure or risk?
Since CVE-2026-6875 does not require authentication, any attacker with network access to a vulnerable ServiceNow instance could potentially exploit it. This makes the flaw particularly dangerous for organizations that expose ServiceNow environments without additional network-layer protections. A successful compromise could expose sensitive business data, IT records, and connected third-party systems, depending on the organization’s configuration.
What are the recommendations?
Barracuda recommends the following actions to mitigate risk from CVE-2026-6875:
- Review ServiceNow family release and apply the appropriate patches or upgrades.
- Monitor administrative activity, integrations, workflow changes, and API behavior for suspicious activity following the update.
- Hosted ServiceNow customers should verify that the required platform update has been applied.
References
For more in-depth information about the recommendations, please visit the following link:
If you have any questions about this Cybersecurity Threat Advisory, don’t hesitate to get in touch with Barracuda Managed XDR’s Security Operations Center.
