CVE-2026-1849
Medium
Description
MongoDB Server may experience an out-of-memory failure while evaluating expressions that produce deeply nested documents. The issue arises in recursive functions because the server does not periodically check the depth of the expression.
SeverityMedium
CVSS6.5
Exploit probability—
Product
Mongodb
PublishedFeb 10, 2026
First seenFeb 10, 2026
Weakness typeCWE-674CWE-674
How to fix
Update
- mongodb mongodb7.0.29, 8.0.18, 8.2.2 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| mongodb mongodb | 7.0.0 ≤ v < 7.0.29, 8.0.0 ≤ v < 8.0.18, 8.2.0 ≤ v < 8.2.2 | 7.0.29, 8.0.18, 8.2.2 |
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