Answer in brief
CVE-2026-82061 records a High severity (CVSS 8.1) vulnerability in Use-After-Free in MongoDB Server Query Execution Memory Tracking Subsystem 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 8.1. 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.
| Product | Affected versions | Fixed versions |
|---|---|---|
| cpe:2.3:a:mongodb:mongodb:*:*:*:*:-:*:*:* | Not reported | Not reported |
| Package | Affected range | Fixed version |
|---|---|---|
| MongoDB/MongoDB Servergeneric | >=8.3.0 <8.3.9 | 8.3.9 |
Published upstream
Sep 8, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Sep 16, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Sep 8, 2026
A use-after-free security issue exists in the server's query execution memory tracking subsystem. An authenticated user with read privileges can trigger a write to freed heap memory through a sequence of standard database commands, leading to server process crash or potential memory corruption. No user interaction is required.
Quoted source text, attributed separately from HOL analysis.