CVE-2026-13075

$rankFusion and $scoreFusion Unbounded Memory Allocation During Error Suggestion Generation

CVE-2026-13075 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

0.0042

36th percentile

An authenticated user can cause the mongod process to be terminated by the operating system under memory pressure via the $rankFusion and $scoreFusion aggregation stages. The issue originates in the server's error-handling path and requires the ability to run aggregation queries.

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-770: Allocation of Resources Without Limits or Throttling
Vendor advisory
https://nvd.nist.gov/vuln/detail/CVE-2026-13075

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