CVE-2026-27314 — Vulnerability in...

HIGH

Apache Cassandra is vulnerable to privilege escalation in an mTLS environment using MutualTlsAuthenticator

Published April 7, 2026Updated April 8, 2026Source: osv

Summary

Privilege escalation in Apache Cassandra 5.0 on an mTLS environment using MutualTlsAuthenticator allows a user with only CREATE permission to associate their own certificate identity with an arbitrary role, including a superuser role, and authenticate as that role via ADD IDENTITY. Users are recommended to upgrade to version 5.0.7+, which fixes this issue.

Advisory Timeline

First published April 7, 2026 (188 days ago).
Last revised April 8, 2026 — 1 day after initial publication.

Remediation

Upgrade to the fixed version using your package manager.

Maven

Update org.apache.cassandra:cassandra-all to 5.0.7 or later

<!-- Update pom.xml dependency version to 5.0.7 for org.apache.cassandra:cassandra-all -->

After upgrading, run your dependency scanner again to confirm the vulnerability is resolved.

Affected Packages (1)

Affects 1 ecosystem: maven (1).

Package	Ecosystem	Affected	Fixed In
org.apache.cassandra:cassandra-all	maven	5.0-alpha1, 5.0-alpha2, 5.0-beta1, 5.0-rc1 (+8 more)	5.0.7

Vulnerability Classification

Common Weakness Enumeration (CWE) identifiers for this vulnerability type.

CWE-267
View on MITRE

CVSS Score Breakdown

What the CVSS (Common Vulnerability Scoring System) 8.8 score means for each attack dimension.

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

References

Frequently Asked Questions

What is CVE-2026-27314?: Apache Cassandra is vulnerable to privilege escalation in an mTLS environment using MutualTlsAuthenticator This vulnerability has been assigned a severity rating of HIGH (CVSS score: 8.8/10).
How do I check if my project is affected by CVE-2026-27314?: CVE-2026-27314 affects org.apache.cassandra:cassandra-all. Use GeekWala's free vulnerability scanner to check your dependencies against CVE-2026-27314 and 200,000+ other known vulnerabilities.

Severity & Exploitability

CVSS Score

8.8

High exploitability or significant impact. Prioritize remediation within days.

Also Known As

GHSA-qxpc-96fq-wwmg

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