Improper access control in Cassandra - CVE-2026-27314
Published: April 7, 2026
Vulnerability identifier: #VU125100
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2026-27314
CWE-ID: CWE-284
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Apache Foundation
Affected software:
Cassandra
Cassandra
Detailed vulnerability description
The vulnerability allows a remote user to escalate privileges.
The vulnerability exists due to improper access control in ADD IDENTITY authorization handling when associating a certificate identity with an arbitrary role in an mTLS environment using MutualTlsAuthenticator. A remote user can associate their own certificate identity with an arbitrary role to escalate privileges.
Exploitation requires an mTLS environment using MutualTlsAuthenticator and CREATE permission.
How to mitigate CVE-2026-27314
Install security update from vendor's website.