CVE-2026-120810: MongoDB Server · Unthrottled Resource Allocation
Affects MongoDB ServerSource CVE Database V5
Not known to be exploited · CVSS 7.1 High · fixed in 9.0.7 : patch MongoDB Server soon.
Data as of 10 Nov 2026, 20:47 UTC
Thin evidence
One scorer or none| CNA (mongodb) | CVSS 4.0 | 7.1 |
|---|---|---|
| CNA (mongodb) | CVSS 3.1 | 6.5 |
- Patch
- Available – fixed in 9.0.7, 8.3.16, 8.0.37 +1
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:NExploitation evidence
Disclosed: evidence found.
CVE published 10 Nov 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 10 Nov 2026.
What to do
Upgrade MongoDB Server to 9.0.7, 8.3.16, 8.0.37 or 7.0.48.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| MongoDBMongoDB Server | Affected
| Fixed in
|
| MongoDBMongoDB Server | Affected
| Fixed in
|
| MongoDBMongoDB Server | Affected
| Fixed in
|
| MongoDBMongoDB Server | Affected
| Fixed in
|
AI-suggested
Fixed versions are available: upgrade to MongoDB Server 7.0.48, 8.0.37, 8.3.16, or 9.0.7 or later. Applying these official fixes will prevent exploitation of this vulnerability. No additional mitigation actions are indicated.
Description
CVE-2026-120810 is a high-severity vulnerability in MongoDB Server's aggregation framework that allows an authenticated user with read privileges to cause a denial of service. The issue arises from an internal expression accessible to any authenticated client that triggers unbounded memory allocations without limits. By sending specially crafted aggregate commands concurrently, an attacker can exhaust server memory, causing the mongod process to be terminated by the operating system's out-of-memory killer. Fixed versions are available for multiple MongoDB releases.