CVE-2026-11933
A use-after-free vulnerability exists in MongoDB Server's server-side JavaScript engine when converting BSON documents to JavaScript arrays. An authenticated user with read privileges who is able to run server-side JavaScript (for example, via $where or $function) can cause the server to access memory that has already been freed. This may result in disclosure of information from the mongod process memory or a denial of service through a server crash.
- Affected products
- Mongodb Server
- Mongodb
- < 4.4.31, 5.0.34, 6.0.29, 7.0.37, 8.0.26, 8.2.11, 8.3.4
- CVSS 3.1
- 8.8 HIGH
- EPSS
- 0.4% (31th percentile)
- Weakness
- CWE-787, CWE-416
- NVD status
- Analyzed
- Published
- 2026-06-12
CVE-2026-11933 at NVD
No indexed exploits for CVE-2026-11933 yet
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No exploit for CVE-2026-11933 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.