# CVE-2026-13076: Aggregation Framework Memory Exhaustion Leading to Process Termination

> CVE-2026-13076: Aggregation Framework Memory Exhaustion Leading to Process Termination. CVSS 6.5 (CVSS 3.1).

Canonical: https://rewindex.com/cve/CVE-2026-13076
Last updated: 2026-10-24T13:10:00Z

- Published: 2026-07-22 19:12 UTC · Updated: 2026-10-24 13:10 UTC · Assigner: mongodb
- CVSS: 6.5 (CVSS 3.1) · Severity: Medium · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- EPSS: 0.42%, 36th percentile (scored 2026-10-25)
- CISA KEV: no
- CWE: CWE-770

## Description

An authenticated user can cause a {{mongod}} process to be terminated by the operating system under memory pressure by performing a specific data type conversion operation within MongoDB's aggregation framework. The behavior stems from disproportionate memory consumption during this operation, and requires both write access to the database and the ability to run aggregation queries.

## Affected vendors and products

- MongoDB: MongoDB Server

## Tracked companies

- [MongoDB Atlas](https://rewindex.com/company/mongodb-atlas.md)

## References

- [CVE record on cve.org](https://www.cve.org/CVERecord?id=CVE-2026-13076)
- [NVD entry](https://nvd.nist.gov/vuln/detail/CVE-2026-13076)
- [https://jira.mongodb.org/browse/SERVER-128584](https://jira.mongodb.org/browse/SERVER-128584)

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_Sources: CVE records from the CVE Program (cve.org). CVE® is a registered trademark of The MITRE Corporation. (https://www.cve.org/) This product uses data from the NVD API but is not endorsed or certified by the NVD. (https://nvd.nist.gov/) Known Exploited Vulnerabilities catalog from CISA. (https://www.cisa.gov/known-exploited-vulnerabilities-catalog) EPSS scores from FIRST (Exploit Prediction Scoring System). (https://www.first.org/epss/)_


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Canonical: https://rewindex.com/cve/CVE-2026-13076 · Markdown: https://rewindex.com/cve/CVE-2026-13076.md · JSON: https://rewindex.com/api/v1/cves/CVE-2026-13076 · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-10-26T04:04:03.242Z