Memory Management Flaw in MongoDB Server's Timeseries Bucket Handling
CVE-2026-18692

7.7HIGH

Key Information:

Vendor

Mongodb
Status
Mongodb Server
Vendor
CVE Published:
11 August 2026

What is CVE-2026-18692?

A flaw has been identified in MongoDB Server regarding the improper handling of timeseries bucket lifecycle. This issue permits an authenticated user with write permissions to manipulate memory references, leading to scenarios where operations may result in a server crash or potentially allow the execution of unintended code. This vulnerability emphasizes the importance of secure memory management practices in database environments.

Affected Version(s)

MongoDB Server 8.3.0 < 8.3.8

References

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

CVSS V4

Score:
7.7
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
Physical
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.