CVE-2026-52852 traccar CVE debrief

Who should care

Defenders responsible for managing and securing Traccar installations should be aware of this vulnerability and take necessary actions to prevent exploitation. This includes verifying Traccar version, restricting report requests, and monitoring system performance. Security teams and vulnerability management teams should also review the affected scope and implement compensating controls for exposed systems.

Why it matters

CVE-2026-52852 is a vulnerability in Traccar that can lead to a DoS condition. Defenders should verify and update Traccar, restrict report requests, and monitor system performance.

• Denial-of-service (DoS) condition due to infinite loop
• Potential for system resource exhaustion
• Need for verification of Traccar version and user permissions
• Importance of restricting report requests to necessary users

Technical summary

The vulnerability exists in the Traccar API, specifically in the GroupResource class, which allows an authenticated user to create a cyclic group-parent hierarchy. When a report is requested for a device in this hierarchy, the system enters an infinite loop, causing a denial-of-service (DoS) condition. The issue is fixed in version 6.14.0, which removes the cyclic group-parent hierarchy vulnerability. Defenders should prioritize verifying and updating Traccar to version 6.14.0 or later, and restrict report requests to only necessary users.

Defensive priority

Defenders should prioritize verifying and updating Traccar to version 6.14.0 or later, and restrict report requests to only necessary users.

Recommended defensive actions

• Verify Traccar version and update to 6.14.0 or later
• Restrict report requests to necessary users
• Monitor system performance and logs for potential DoS conditions
• Review compensating controls for exposed systems
• Check relevant monitoring, detection, and logs for exposed assets
• Track exceptions, retest remediated assets, and close the item only after evidence is documented.
• Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up.

Evidence notes

The CVE record and NVD entry provide details on the vulnerability, including its description, CVSS score, and affected versions. The Traccar project documentation and release notes for version 6.14.0 confirm the fix. Defenders should verify Traccar version, review user permissions, and restrict report requests. Evidence limits suggest focusing on confirmed affected scope and vendor guidance.

Sources and references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.