CVE-2026-13075
$rankFusion and $scoreFusion Unbounded Memory Allocation During Error Suggestion Generation
CVSS Score
6.5
EPSS Score
0.0%
EPSS Percentile
0th
An authenticated user can cause the mongod process to be terminated by the operating system under memory pressure via the $rankFusion and $scoreFusion aggregation stages. The issue originates in the server's error-handling path and requires the ability to run aggregation queries.
| CWE | CWE-770 |
| Vendor | mongodb |
| Product | mongodb server |
| Ecosystems | |
| Industries | Technology |
| Published | Jul 22, 2026 |
Stay Ahead of the Next One
Get instant alerts for mongodb mongodb server
Be the first to know when new medium vulnerabilities affecting mongodb mongodb server are published — delivered to Slack, Telegram or Discord.
Get Free Alerts →
Free · No credit card · 60 sec setup
CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Affected Versions
MongoDB / MongoDB Server
8.2.0 < 8.2.12 8.3.0 < 8.3.7