What’s Vulnerable › Vulnerabilities
CVE-2026-13075: $rankFusion and $scoreFusion Unbounded Memory Allocation During Error Suggestion Generation
- 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-770
Description
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.
Affected products
- MongoDB: from 8.2.0 before 8.2.12; from 8.3.0 before 8.3.7 — fixed in 8.2.12, 8.3.7
How to fix
Upgrade to a fixed version: MongoDB 8.2.12, 8.3.7. Check the vendor advisory for mitigations.
References
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