CVE-2025-24860: Apache Cassandra: CassandraNetworkAuthorizer and CassandraCIDRAuthorizer can be bypassed allowing access to different network regions

[Paulo Motta <paulo () apache org>]

Severity: moderate

Affected versions:

- Apache Cassandra 4.0.0 through 4.0.15
- Apache Cassandra 4.1.0 through 4.1.7
- Apache Cassandra 5.0.0 through 5.0.2

Description:

Incorrect Authorization vulnerability in Apache Cassandra allowing users to access a datacenter or IP/CIDR groups they 
should not be able to when using CassandraNetworkAuthorizer or CassandraCIDRAuthorizer.

Users with restricted data center access can update their own permissions via data control language (DCL) statements on 
affected versions.




This issue affects Apache Cassandra: from 4.0.0 through 4.0.15 and from 4.1.0 through 4.1.7 for 
CassandraNetworkAuthorizer, and from 5.0.0 through 5.0.2 for both CassandraNetworkAuthorizer and 
CassandraCIDRAuthorizer.




Operators using CassandraNetworkAuthorizer or CassandraCIDRAuthorizer on affected versions should review data access 
rules for potential breaches. Users are recommended to upgrade to versions 4.0.16, 4.1.8, 5.0.3, which fixes the issue.

This issue was reported by Stefan Miklosovic

References:

https://cassandra.apache.org/
https://www.cve.org/CVERecord?id=CVE-2025-24860