CVE-2026-27314

HighCVSS 8.8/10Last modified Oct 26, 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.

Metrics

CVSS 3.1 8.8/10CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-267

Affected software

Vendor	Product	Versions
Apache Software Foundation	Apache Cassandra	>= 5.0, <= 5.0.6

References

https://lists.apache.org/thread/zrng82ddy4rpsmfyk582v6hqxcqrbz7fMailing List, Vendor Advisory
http://www.openwall.com/lists/oss-security/2026/04/07/7Mailing List, Third Party Advisory

Timeline

Published: Apr 7, 2026
Last modified: Oct 26, 2026
NVD status: Analyzed

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