CVE-2026-32588

Medium

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.

SeverityMedium

CVSS6.5

Exploit probability—

Product

Apache Cassandra

PublishedApr 7, 2026

First seenApr 7, 2026

Weakness typeCWE-400Uncontrolled resource consumption

How to fix

Update

apache cassandra4.0.20, 4.1.11, 5.0.7 or later
org.apache.cassandra:cassandra-all4.0.20, 4.1.11, 5.0.7 or later

Vendor advisories

lists.apache.org/thread/2tnwjdnss378glxrsmnlzz3k53ftphrc

Affected products

Product	Affected versions	Fixed in
apache cassandra	4.0.0 ≤ v < 4.0.20, 4.1.0 ≤ v < 4.1.11, 5.0.0 ≤ v < 5.0.7	4.0.20, 4.1.11, 5.0.7
org.apache.cassandra:cassandra-allMaven	4.0 ≤ v < 4.0.20, 4.1 ≤ v < 4.1.11, 5.0 ≤ v < 5.0.7	4.0.20, 4.1.11, 5.0.7

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