CVE-2026-6811
Medium
Description
Stack exhaustion vulnerability in the MongoDB PHP driver can cause application crashes when processing deeply nested BSON documents in unusual circumstances when the source of these BSON documents is not MongoDB Server.
SeverityMedium
CVSS5.9
Exploit probability—
Product
Mongodb Php Driver
PublishedMay 14, 2026
First seenMay 14, 2026
Weakness typeCWE-674CWE-674
How to fix
Update
- mongodb php_driver1.21.5, 2.1.8 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| mongodb php_driver | 1.21.0 ≤ v < 1.21.5, 2.1.0 ≤ v < 2.1.8 | 1.21.5, 2.1.8 |
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