CVE-2026-13074
Awaitable Hello Command in Exhaust Mode Unthrottled Response Loop Leading to Denial of Service
CVSS Score
5.3
EPSS Score
0.0%
EPSS Percentile
0th
An unauthenticated remote client can cause excessive CPU consumption on a MongoDB server by sending a specific combination of parameters to the awaitable hello command in exhaust mode. The server's handling of this combination results in a response loop that bypasses normal throttling, allowing a small number of connections to degrade server availability.
| 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:N/UI:N/S:U/C:N/I:N/A:L Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
Low
Affected Versions
MongoDB / MongoDB Server
7.0 < 7.0.39 8.0 < 8.0.28 8.2.0 < 8.2.12 8.3.0 < 8.3.7