CVE-2026-27314

HIGH

Apache Cassandra: Privilege escalation via ADD IDENTITY authorization bypass

Title source: cna

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.

References (2)

[Vendor Advisory] https://lists.apache.org/thread/zrng82ddy4rpsmfyk582v6hqxcqrbz7f

[Mailing List] http://www.openwall.com/lists/oss-security/2026/04/07/7

Scores

CVSS v3 8.8

EPSS 0.0004

EPSS Percentile 12.7%

Attack Vector NETWORK

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

CISA SSVC

Vulnrichment

Exploitation none

Automatable no

Technical Impact total

Details

CWE

CWE-267

Status published

Products (3)

apache/cassandra 5.0.0 - 5.0.7

Apache Software Foundation/Apache Cassandra 5.0 - 5.0.6

org.apache.cassandra/cassandra-all 5.0-alpha1 - 5.0.7Maven

Published Apr 07, 2026

Tracked Since Apr 07, 2026