Vulnerability Details CVE-2026-27314
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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.0
EPSS Ranking 7.1%
CVSS Severity
CVSS v3 Score 8.8
References
Products affected by CVE-2026-27314
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cpe:2.3:a:apache:cassandra:5.0.0
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cpe:2.3:a:apache:cassandra:5.0.1
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cpe:2.3:a:apache:cassandra:5.0.2
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cpe:2.3:a:apache:cassandra:5.0.3
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cpe:2.3:a:apache:cassandra:5.0.4