# CVE-2026-84962

## Summary

- **CVE ID:** CVE-2026-84962
- **Severity:** MEDIUM
- **CVSS Score:** 5.7 (CVSS:4.0/AV:N/AC:H/AT:P/PR:H/UI:P/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N)
- **CWE:** CWE-93
- **Published:** Sep 3, 2026
- **Last Modified:** Sep 3, 2026

## Description

An unauthorized user with key vault write access may cause an authorized client to issue arbitrary authenticated Google Cloud KMS API calls under the authorized user's identity, escalating database-level access into cloud key control and defeating client-side encryption.

## Affected Products

- MongoDB — libmongocrypt (0)

## References

- [CNA](https://jira.mongodb.org/browse/MONGOCRYPT-960)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.12%
- **EPSS Percentile:** 1.9

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