# CVE-2026-82052

## Summary

- **CVE ID:** CVE-2026-82052
- **Severity:** HIGH
- **CVSS Score:** 7.1 (CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/AU:Y/R:A)
- **CWE:** CWE-617
- **Published:** Sep 8, 2026
- **Last Modified:** Sep 10, 2026

## Description

The $regexFindAll expression can be used by an authenticated user who can run aggregation pipeline stages to crash a MongoDB server (mongod). Under certain specific conditions the  regex match can start in the middle of a multi-code-unit character, triggering an assertion during query execution.

## Affected Products

- MongoDB — MongoDB Server (8.3.0)
- MongoDB — MongoDB Server (8.0)
- MongoDB — MongoDB Server (7.0)

## References

- [CNA](https://jira.mongodb.org/browse/SERVER-124077)
- [CNA](https://jira.mongodb.org/browse/SERVER-127985)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.36%
- **EPSS Percentile:** 29.2

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-11._