CVE-2026-25611CWE-405

Pre-Authentication Memory Exhaustion Denial of Service in MongoDB Server

High · published February 10, 2026

CVSS v4.0
8.7
EPSS
1%
Percentile
52.9
In the wild
Unconfirmed
What it is

🚨 A sneaky attack involving crafted messages can crash your MongoDB server by exhausting its memory! ⚡ Think of it like a restaurant that's suddenly flooded with customers, all ordering at once without a reservation — the kitchen just can’t keep up, resulting in chaos and a complete shutdown. If exploited, this vulnerability could lead to a complete server crash, leaving your applications down and users frustrated. Imagine being unable to serve customers because the kitchen (or server, in this case) is overwhelmed and out of commission!

Put simply

Think of it like a restaurant that's suddenly flooded with customers, all ordering at once without a reservation — the kitchen just can’t keep up, resulting in chaos and a complete shutdown. CVE-2026-25611 allows unauthenticated messages to flood a MongoDB server, consuming available memory and causing it to crash.

What to do

If exploited, this vulnerability could lead to a complete server crash, leaving your applications down and users frustrated. Imagine being unable to serve customers because the kitchen (or server, in this case) is overwhelmed and out of commission! To mitigate this issue, ensure you apply the latest MongoDB updates, implement rate limiting on incoming messages, and monitor server memory usage closely. It's crucial to be proactive! You've got this! Stay vigilant and follow these steps to lock down your environment. 🛡️

The record
Technical detail
CVSS v4.0
8.7 · HIGH
Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
EPSS
0.00707 · 52.9th percentile
Weakness
CWE-405 · Asymmetric Resource Consumption (Amplification)
Published
2026-02-10T17:52Z
EPSS history
Timeline
  • 10 FEB 17:52Z
    Pre-Authentication Memory Exhaustion Denial of Service in MongoDB Server
    cvelistv5