CVE-2026-27314

Name: CVE-2026-27314
Creator: NVD / NIST
Published: 2026-04-07T17:16:27.693+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.8/10EPSS 0.26%

Last modified Jun 17, 2026

CVE-2026-27314 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. 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.. EPSS estimates a 0.26% chance of exploitation in the next 30 days.

Description

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.

Metrics

CVSS 3.1

8.8/10

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

EPSS Probability

0.26%

17.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-267

Affected Software

Vendor	Product	Versions
Apache	Cassandra	>= 5.0.0, < 5.0.7

References

https://lists.apache.org/thread/zrng82ddy4rpsmfyk582v6hqxcqrbz7fMailing List, Vendor Advisory
http://www.openwall.com/lists/oss-security/2026/04/07/7Mailing List, Third Party Advisory

Timeline

Published: Apr 7, 2026
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2026-27314?

How severe is CVE-2026-27314?

CVE-2026-27314 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 0.26% probability of exploitation in the next 30 days.

How do I fix CVE-2026-27314?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2026-27314?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST