CVE-2026-27314

HIGH 8.8

Apache Cassandra: Privilege escalation via ADD IDENTITY authorization bypass

CVSS Score

8.8

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-267
Vendor	apache software foundation
Product	apache cassandra
Published	Apr 7, 2026
Last Updated	Apr 8, 2026

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Affected Versions

Apache Software Foundation / Apache Cassandra

5.0 ≤ 5.0.6

References

NVD ↗ CVE.org ↗ EPSS Data ↗

lists.apache.org: https://lists.apache.org/thread/zrng82ddy4rpsmfyk582v6hqxcqrbz7f openwall.com: http://www.openwall.com/lists/oss-security/2026/04/07/7

Credits

🔍 Sho Odagiri, GMO Cybersecurity by Ierae, Inc.