Answer in brief
CVE-2026-120810 records a High severity (CVSS 7.1) vulnerability in Uncontrolled Resource Consumption in MongoDB Server Aggregation Framework via Internal Expression Leads to Denial of Service. The current sources do not mark it as known exploited. The current feed maps MongoDB/MongoDB Server (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 7.1. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps MongoDB/MongoDB Server (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| MongoDB/MongoDB Servergeneric | >=9.0.0 <9.0.7 || >=8.3.0 <8.3.16 || >=8.0.0 <8.0.37 || >=7.0.0 <7.0.48 | 9.0.7, 8.3.16, 8.0.37, 7.0.48 |
Published upstream
Nov 10, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Nov 10, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Nov 10, 2026
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.
Quoted source text, attributed separately from HOL analysis.