CVE-2026-27314

Apache Cassandra: Privilege escalation via ADD IDENTITY authorization bypass

Published Apr 7, 2026 CVSS 3.1 · 8.8 High EPSS < 1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

Sign in to view the affected projects.

Advisories

Source ID Title
Github GHSA Github GHSA GHSA-qxpc-96fq-wwmg Apache Cassandra is vulnerable to privilege escalation in an mTLS environment using MutualTlsAuthenticator
History
Type Values Removed Values Added
CPEs cpe:2.3:a:apache:cassandra:*:*:*:*:*:*:*:*
Type Values Removed Values Added
First Time appeared Apache
Apache cassandra
Vendors & Products Apache
Apache cassandra
Type Values Removed Values Added
References
Metrics cvssV3_1

{'score': 8.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
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.
Title Apache Cassandra: Privilege escalation via ADD IDENTITY authorization bypass
Weaknesses CWE-267
References
Weaknesses

Sources

Status
PUBLISHED
Assigner
apache
Published
Updated
Apr 8, 2026, 3:55 AM
Reserved
Feb 19, 2026, 12:03 AM
Status
Analyzed
Published
Apr 7, 2026, 5:16 PM
Modified
Oct 26, 2026, 9:10 PM