CVE-2026-32588 | Apache Cassandra: Authenticated DoS via ALTER ROLE Password Hashing

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.

Published: 2026-04-07 Last update: 2026-04-15 Assigner: [email protected] Source: [email protected]
NVD Status：Analyzed，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2026-32588 is rated Low Risk (34.5/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.08%). Monitor for updates and reassess as exploit intelligence or EPSS changes.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2026-32588

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-04-16 0.02% 0.08% +0.06%
2 2026-04-08 — 0.02% —

Full EPSS history (2 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2026-32588

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
6.5 3.1 MEDIUM
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:L)
A normal user session is enough; they don’t have to be admin.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 2.8 3.6 134c704f-9b21-4f2e-91b3-4a467353bcc0

Weakness enumeration for CVE-2026-32588

GitHub Security Advisory for CVE-2026-32588

GHSA-qffm-gf3j-6mvg · Severity: low · Ecosystem: maven — Apache Cassandra has an authenticated DoS over CQL

OS Trackers for CVE-2026-32588

vendor priority summary link
redhat medium — https://access.redhat.com/security/cve/CVE-2026-32588

Affected software / configurations for CVE-2026-32588

Vendor Product Version Raw CPE
apache cassandra >= 4.0.0, < 4.0.20 cpe:2.3:a:apache:cassandra:*:*:*:*:*:*:*:*
apache cassandra >= 4.1.0, < 4.1.11 cpe:2.3:a:apache:cassandra:*:*:*:*:*:*:*:*
apache cassandra >= 5.0.0, < 5.0.7 cpe:2.3:a:apache:cassandra:*:*:*:*:*:*:*:*

References for CVE-2026-32588

cvelogic Threat Intelligence