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VulnerabilityPublished Updated

CVE-2026-32588: Apache Cassandra · Uncontrolled Resource Consumption

Affects Apache CassandraSource CVE Database V5

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Not known to be exploited · CVSS 6.5 Medium · fixed in 4.0.20 : update Apache Cassandra when convenient.

Data as of 30 Oct 2026, 11:52 UTC

CVSS 3.1 base score
6.5Medium
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.5% chance of exploitation in 30 days – higher than 44% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in 4.0.20
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 7 Apr 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 30 Oct 2026.

What to do

Affected software

ProductAffectedFixed in
Apache Software FoundationApache CassandraAffected
  • >=4.0 <=4.0.19
  • >=4.1 <=4.1.10
  • >=5.0 <=5.0.6
Fixed in–
MavenApache Software Foundation/org.apache.cassandra:cassandra-allpkg:maven/Apache Software Foundation/org.apache.cassandra:cassandra-allOther threatsAffected
  • >=4.0 <=4.0.19
  • >=4.1 <=4.1.10
  • >=5.0 <=5.0.6
Fixed in–
Mavenorg.apache.cassandra/cassandra-allpkg:maven/org.apache.cassandra/cassandra-allOther threatsAffected
  • =4.0
  • =4.1
  • =5.0
Fixed in–

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

Users should upgrade Apache Cassandra to versions 4.0.20, 4.1.11, or 5.0.7 where this vulnerability is fixed. No other mitigations or temporary fixes are indicated. Patch status is confirmed by the vendor recommendation to upgrade to these versions.

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.

References

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