# CVE-2026-82057

## Summary

- **CVE ID:** CVE-2026-82057
- **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)
- **CWE:** CWE-843
- **Published:** Sep 8, 2026
- **Last Modified:** Sep 8, 2026

## Description

A security issue was discovered in MongoDB where an authenticated user with readWrite privileges could crash the mongod server process. By specifying a custom WiredTiger storage configuration option with an incompatible value during collection creation, a user could cause a type confusion in the storage engine layer. When documents were subsequently read from the misconfigured collection, the resulting mismatch in expected data format led to corrupted memory interpretation and a server crash. The crafted collection configuration persists across restarts, requiring manual operator intervention to remediate.

## Affected Products

- MongoDB — MongoDB Server (8.3.0)

## References

- [CNA](https://jira.mongodb.org/browse/SERVER-130495)

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-10._