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CVE-2026-27314

Apache Cassandra: Privilege escalation via ADD IDENTITY authorization bypass

Published: Apr 7, 2026Updated: Apr 15, 2026 Sources: CVE List NVDCWE-267
NVD MITRE
8.8CVSSHIGH
EPSS Score
0.3%
Top 82.6%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

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.

CVSS Vector Breakdown

AV:NAC:LPR:LUI:NS:UC:HI:HA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:LPrivileges Required
Low
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
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Weaknesses

CWE-267

Affected Products

Apache CassandraApache Software Foundation
Mixed
Web & CMS Plugins / cms-core
cassandraapache
On-premDatabase
Databases / nosql
apache software foundationoss-projectUSWeb & CMS Pluginsaka apache foundation
apacheoss-projectUSWeb & CMS Pluginsaka apache http server, apache httpd

Exploitability

Official Patch Available

References

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

Timeline

Published
Apr 7, 2026
Last Updated
Apr 15, 2026

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