Vulnerability · Published Feb 10, 2026 · Assigned by mongodb
CVE-2026-25611Pre-Authentication Memory Exhaustion Denial of Service in MongoDB Server
High 7.5
In plain English
A high-severity security flaw in MongoDB Server from MongoDB Inc. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.9% (higher than 59% of all known vulnerabilities).
Severity (CVSS 3.1)7.5High
Exploit odds (30 days)0.9%top 41.3% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
A series of specifically crafted, unauthenticated messages can exhaust available memory and crash a MongoDB server.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| MongoDB Inc | MongoDB Server | 8.2 – before 8.2.48.0 – before 8.0.187.0 – before 7.0.29 |
Weakness: CWE-405 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H