MongoDB server’s aggregation framework · Unthrottled Resource Allocation
Source GCVE Database
Not known to be exploited · CVSS 7.1 High · fixed in 9.0.7 : patch MongoDB Server soon.
Data as of 10 Nov 2026, 22:34 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
|
Description
An issue in MongoDB server’s aggregation framework allows an authenticated user with read privileges to cause a denial of service by sending specially crafted aggregate commands using an internal expression. Despite its internal naming, this expression is registered as accessible to any authenticated client. By supplying crafted input parameters across multiple concurrent connections, each evaluation triggers unbounded memory allocations with no per-expression memory limits enforced. This can exhaust available server memory and cause the mongod process to be terminated by the operating system’s out-of-memory killer.