CVE-2026-18692: Use-After-Free in MongoDB Timeseries Bucket Handling Leads to Denial of Service and Potential Remote Code Execution
An issue in MongoDB Server's handling of timeseries bucket lifecycle could allow an authenticated user with write privileges to cause an internal reference to be used after the underlying memory has been freed. Subsequent operations could then result in a server crash or, potentially, execution of unintended code.
Affected Software
Event History
Frequently Asked Questions
What is the severity of CVE-2026-18692?
CVE-2026-18692 has a severity rating of high at 8.8.
What are the potential impacts of CVE-2026-18692?
CVE-2026-18692 could lead to a denial of service and potentially allow for remote code execution.
Who is affected by CVE-2026-18692?
Authenticated users with write privileges in MongoDB Server are affected by CVE-2026-18692.
How does CVE-2026-18692 exploit the system?
CVE-2026-18692 exploits the use-after-free vulnerability in MongoDB's timeseries bucket handling.
How do I fix CVE-2026-18692?
To fix CVE-2026-18692, you should update to the latest version of MongoDB Server that addresses this vulnerability.