CVE-2026-27314
Apache Cassandra is vulnerable to privilege escalation in an mTLS environment using MutualTlsAuthenticator
8.8
HIGH
CVSS 3.1
EPSS 0.04%
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.
How to fix CVE-2026-27314
To remediate CVE-2026-27314, upgrade the affected package to a fixed version below.
- —upgrade to 5.0.7 or later
Is CVE-2026-27314 being exploited?
Low — EPSS is 0.0%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- >= 5.0-alpha1, < 5.0.7
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH8.8 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |