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

CVE-2026-13056 is fixed in MongoDB on 1 platform by MongoDB 8.3.7 (version 8.3.7), released June 11, 2026. It is not reported as exploited. Patch Radar priority: High.

High

CVSS

7.1

No vendor severity

Exploitation

None reported

No vendor assessment

CISA KEV

Not listed

Not in the Known Exploited Vulnerabilities catalog

EPSS

0.0040

34th percentile

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.

Where it's fixed

Product	Fixed in	Fix	Released
Windows apps
MongoDB	8.3.7	MongoDB 8.3.7	Jun 11, 2026

Details

Published
July 22, 2026
Weakness
CWE-1325: Improperly Controlled Sequential Memory Allocation
Vendor advisory
https://nvd.nist.gov/vuln/detail/CVE-2026-13056

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