oss-security - CASSANDRA-21202: CVE-2026-32588: Apache Cassandra: Authenticated DoS via ALTER ROLE Password Hashing

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Message-ID: <d3798384-1752-9075-fb65-4203017fdf3e@apache.org>
Date: Tue, 07 Apr 2026 13:57:54 +0000
From: Michael Semb Wever <mck@...che.org>
To: oss-security@...ts.openwall.com
Subject: CASSANDRA-21202: CVE-2026-32588: Apache Cassandra: Authenticated
 DoS via ALTER ROLE Password Hashing 

Severity: low 

Affected versions:

- Apache Cassandra (org.apache.cassandra:cassandra-all) 4.0 through 4.0.19
- Apache Cassandra (org.apache.cassandra:cassandra-all) 4.1 through 4.1.10
- Apache Cassandra (org.apache.cassandra:cassandra-all) 5.0 through 5.0.6

Description:

Authenticated DoS over CQL in Apache Cassandra 4.0, 4.1, 5.0 allows authenticated user to raise query latencies via repeated password changes.
Users are recommended to upgrade to version 4.0.20, 4.1.11, 5.0.7, which fixes this issue.

Credit:

Youlong Chen, Institute of Computing Technology, Chinese Academy of Sciences (reporter)

References:

https://cassandra.apache.org/
https://www.cve.org/CVERecord?id=CVE-2026-32588

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