What’s Vulnerable › Vulnerabilities
CVE-2026-13056: A user with read access can cause a DoS by executing a specifically crafted query to consume a large amount of RAM
- Severity: medium (CVSS 6.5 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.4% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-07-22 · updated 2026-10-24
- Weakness: CWE-1325
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.
Affected products
- MongoDB: from 8.0.0 before 8.0.28; from 8.3.0 before 8.3.7 — fixed in 8.0.28, 8.3.7
How to fix
Upgrade to a fixed version: MongoDB 8.0.28, 8.3.7. Check the vendor advisory for mitigations.
References
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