8.8

CVE-2026-27314: apache software foundation apache cassandra Privilege Defined With Unsafe Actions

CVSS: 8.8v3.1HighAnalyzed
AliasesGHSA-qxpc-96fq-wwmg
Published 07-04-2026Last modified 08-04-2026
Open JSON

Vulnerability summary

CVE-2026-27314 is a high (CVSS 8.8) Privilege Defined With Unsafe Actions vulnerability in apache software foundation apache cassandra. EPSS estimates a 0.34% chance of exploitation in the next 30 days, higher than 25.9% of scored vulnerabilities.

Overall risk
35/100
0100
Medium · default modelHow is this calculated?
CVSS score
8.8/10
010
High · v3.1 (CVE.org)
EPSS score
0.34%
0%100%
Low · +0.08 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 07-04-2026
    PublishedVulnerability first disclosed.
  2. 08-04-2026
    Last modifiedVulnerability information updated.

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.

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

0.34%

Chance of exploitation in the next 30 days

Percentile

26%

Versus all other CVEs

30-day change

+0.08 pp

From 0.26% on 18-09-2026

18-09-202618-10-2026
EPSS score
0.34%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Apache1 product
Apache software foundation1 product
Org.apache.cassandra1 product
  • cassandra-all≥ 5.0-alpha1, < 5.0.7

3 vendors · 3 products

References

6 links