CVE-2026-18692 — Use-After-Free in MongoDB Timeseries Bucket Handling Leads to Denial of Service and Potential Remote Code Execution

CVE-2026-18692

Use-After-Free in MongoDB Timeseries Bucket Handling Leads to Denial of Service and Potential Remote Code Execution PUBLISHED

Description (CNA)

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 (CNA)

Vendor / product	Versions
MongoDB / MongoDB Server	affected 8.3.0 before 8.3.8

CWE

CWE-416

References

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

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.