CVE-2026-13056

Medium

Description

Using expressions that generate large arrays it is possible to craft a query that creates very large intermediate objects in memory, causing the server to crash with OOM error.

SeverityMedium
CVSS6.5
Exploit probability—
ProductMongodb
PublishedJul 22, 2026
First seenJul 22, 2026
Weakness typeCWE-1325CWE-1325

How to fix

Update
  • mongodb mongodb8.0.28, 8.3.7 or later

Affected products

ProductAffected versionsFixed in
mongodb mongodb8.0.0 ≤ v < 8.0.28, 8.3.0 ≤ v < 8.3.78.0.28, 8.3.7

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