CVE-2026-8336
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 products
- Mongodb Server, Mongodb
- Mongodb
- < 8.2.9, 8.3.2
- Fix
- Available
- CVSS 4.0
- 7.7 HIGH
- CVSS 3.1
- 7.5 HIGH
- EPSS
- 0.3% (17th percentile)
- Weakness
- CWE-416
- NVD status
- Analyzed
- Published
- 2026-05-13
CVE-2026-8336 at NVD
No indexed exploits for CVE-2026-8336 yet
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No exploit for CVE-2026-8336 has been indexed yet. Our index is built from live traffic and upstream syncs, so this page can only say what it knows — not that no exploit exists.