CVE-2026-18692

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.

Score

CVSS 3.1 8.8 High

Status

Analyzed - cna@mongodb.com

Published

2026-08-11

Last modified

2026-10-23

Weaknesses

CWE-416

Affected products

• Mongodb (Mongodb)
• Mongodb Server (Mongodb)

References

• https://jira.mongodb.org/browse/SERVER-129887