CVE-2026-8336
High · 7.5CVSS
7.5
EPSS
0.5%
Published
May 13, 2026
CISA due date
—
The record
After invoking $_internalJsEmit, which is not intended to be directly accessible, or mapreduce command’s map function in a certain way, an authenticated user can subsequently crash mongod when the server-side JavaScript engine (through $where, $function, mapreduce reduce stage, etc.) is used also in a specific way, resulting in a post-authentication denial-of-service. This issue impacts MongoDB Server v8.2 versions prior to 8.2.9 and v8.3 versions prior to 8.3.2.
Affected packages
| Ecosystem | Package | Introduced | Fixed |
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