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CVE-2026-32588 Apache Cassandra

Affected softwareApache Cassandra
Severity6.5 Medium CVSS 3.1
Fixed in4.0.20, 4.1.11, 5.0.7
WeaknessUncontrolled resource consumption (CWE-400)
Published7 Apr 2026
Updated26 Oct 2026

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.

Exploitation status

No public exploit

No exploit has been reported in the sources we check.

  • CISA KEV not listed
  • VulnCheck KEV not listed
  • CISA Vulnrichment exploitation: none
  • Indexed PoC none indexed
  • EPSS 0.55% chance in 30 days

Waratek protection

No exploit published

Within Waratek scope. In the sources we check, nobody has published exploit code for this CVE or reported it being exploited.

A public code fix exists.

  • Protection none
  • Action unverified
  • Review automated Upstream data
  • Record active
Decided by Medium or Low severity, no CISA or VulnCheck KEV listing, no PoC clearing the evidence bar, no CISA verdict, no Oracle advisory
Finding This CVE is MEDIUM severity, is not listed in CISA KEV or VulnCheck KEV, has no public exploit or PoC in any indexed source, carries no CISA Vulnrichment finding of a demonstrated exploit, and is not part of an Oracle Critical Patch Update. None of the signals that would put it in front of an engineer is present, and the volume of CVEs below that bar is too great to take one at a time, so no rule is written for it. This is a decision about what we act on, not a finding that the CVE is harmless — a patch may well be derivable, and a low-severity defect can still be one link in a longer chain.

Affected software and releases

Maven packages

Affected and fixed versions, from OSV.dev
PackageIntroducedFixedLast affected
org.apache.cassandra:cassandra-all 4.0 4.0.20 unbounded
org.apache.cassandra:cassandra-all 4.1 4.1.11 unbounded
org.apache.cassandra:cassandra-all 5.0 5.0.7 unbounded

Products and versions

2 products, 6 version entries
SourceVendorProductSchemeAffected versions
nvd apache cassandra generic ≥ 4.0.0 and < 4.0.20 · ≥ 4.1.0 and < 4.1.11 · ≥ 5.0.0 and < 5.0.7
osv org.apache.cassandra cassandra-all generic ≥ 4.0 and < 4.0.20 · ≥ 4.1 and < 4.1.11 · ≥ 5.0 and < 5.0.7

References

URLTags
https://lists.apache.org/thread/2tnwjdnss378glxrsmnlzz3k53ftphrc WEB
http://www.openwall.com/lists/oss-security/2026/04/07/9 WEB

Timeline

Published2026-04-07By the CVE Program.
NVD record modified2026-10-26NVD's own last-modified date for this record.