CVE-2026-8201
Medium
Description
A use-after-free vulnerability exists in MongoDB's Field-Level Encryption (FLE) query analysis component, affecting client-side uses of mongocryptd and crypt_shared. Triggering this vulnerability requires control over the structure of a client's FLE-related query. This issue impacts MongoDB Server’s mongocryptd component v7.0 versions prior to 7.0.34, v8.0 versions prior to 8.0.23, v8.2 versions prior to 8.2.9 and v8.3 versions prior to 8.3.2.
SeverityMedium
CVSS6.4
Exploit probability—
Product
Mongodb
PublishedMay 13, 2026
First seenMay 13, 2026
Weakness typeCWE-416Use after free
How to fix
Update
- mongodb mongodb7.0.34, 8.0.23, 8.2.9, 8.3.2 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| mongodb mongodb | 7.0.0 ≤ v < 7.0.34, 8.0.0 ≤ v < 8.0.23, 8.2.0 ≤ v < 8.2.9, 8.3.0 ≤ v < 8.3.2 | 7.0.34, 8.0.23, 8.2.9, 8.3.2 |
Check your version
Choose the product and enter the version you run to see whether it falls in the affected range.
In the Intelligence 360 plan
Attack Surface Management
See the assets tied to your domains, the technologies they run and known vulnerabilities in one list.