# CVE-2026-27314

## Summary

- **CVE ID:** CVE-2026-27314
- **Severity:** HIGH
- **CVSS Score:** 8.8 (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)
- **CWE:** CWE-267
- **Published:** Apr 7, 2026
- **Last Modified:** Apr 8, 2026

## Description

Privilege escalation in Apache Cassandra 5.0 on an mTLS environment using MutualTlsAuthenticator allows a user with only CREATE permission to associate their own certificate identity with an arbitrary role,
including a superuser role, and authenticate as that role via ADD IDENTITY.

Users are recommended to upgrade to version 5.0.7+, which fixes this issue.

## Affected Products

- Apache Software Foundation — Apache Cassandra (5.0)

## References

- [CNA](https://lists.apache.org/thread/zrng82ddy4rpsmfyk582v6hqxcqrbz7f)
- [CVE](http://www.openwall.com/lists/oss-security/2026/04/07/7)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.26%
- **EPSS Percentile:** 18.1

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