← Vulnerability feed

Vulnerability record · CVE-2025-26467 · published 25 August 2025

CVE-2025-26467: Apache cassandra vulnerability

Apache · Cassandra

Privilege Defined With Unsafe Actions vulnerability in Apache Cassandra. An user with MODIFY permission ON ALL KEYSPACES can escalate privileges to superuser within a targeted Cassandra cluster via unsafe actions to a system resource. Operators granting data MODIFY permission on all keyspaces on affected versions should review data access rules for potential breaches. This issue affects Apache Cassandra 3.0.30, 3.11.17, 4.0.16, 4.1.7, 5.0.2, but this advisory is only for 4.0.16 because the fix to CVE-2025-23015 was incorrectly applied to 4.0.16, so that version is still affected. Users in the 4.0 series are recommended to upgrade to version 4.0.17 which fixes the issue. Users from 3.0, 3.11, 4.1 and 5.0 series should follow recommendation from CVE-2025-23015.

8.8 CVSS 3.1 High EPSS 0.52% · top 58.5% CWE-267 · CWE-267
8.8CVSS 3.1 base score
0.52%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
1References
17 Jun 2026Last modified by NVD

Description

Privilege Defined With Unsafe Actions vulnerability in Apache Cassandra. An user with MODIFY permission ON ALL KEYSPACES can escalate privileges to superuser within a targeted Cassandra cluster via unsafe actions to a system resource. Operators granting data MODIFY permission on all keyspaces on affected versions should review data access rules for potential breaches. This issue affects Apache Cassandra 3.0.30, 3.11.17, 4.0.16, 4.1.7, 5.0.2, but this advisory is only for 4.0.16 because the fix to CVE-2025-23015 was incorrectly applied to 4.0.16, so that version is still affected. Users in the 4.0 series are recommended to upgrade to version 4.0.17 which fixes the issue. Users from 3.0, 3.11, 4.1 and 5.0 series should follow recommendation from CVE-2025-23015.

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

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://lists.apache.org/thread/xxj36rr4d6mzyqpld05dn8b9951hfpz7 Mailing ListVendor Advisory

Track CVE-2025-26467 inside VULONE

Watch it alongside the ransomware crews, C2 infrastructure and forum chatter that reference it, query it through the API and pull it into your SIEM over TAXII.

Start free Open in platform

Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.8CVE-2016-3427Oracle Java SE JMX Improper Access Control VulnerabilityCVE-2016-3427 is an unspecified vulnerability in Oracle Java SE 6u113, 7u99, 8u77, Java SE Embedded 8u77, and JRockit R28.3.9, reached through vector…KEVEPSS 92%analysed9.8CVE-2018-8016Apache cassandra missing authentication for critical function vulnerabilityThe default configuration in Apache Cassandra 3.8 through 3.11.1 binds an unauthenticated JMX/RMI interface to all network interfaces, which allows r…EPSS 2.3%9.1CVE-2021-44521Apache Cassandra user-defined functions allow remote code executionApache Cassandra can execute arbitrary code on the host when user-defined functions, scripted UDFs, and non-threaded UDF execution are all enabled. T…EPSS 58%analysed8.8CVE-2026-27314Apache cassandra vulnerabilityPrivilege escalation in Apache Cassandra 5.0 on an mTLS environment using MutualTlsAuthenticator allows a user with only CREATE permission to associa…EPSS 0.34%8.8CVE-2025-23015Apache cassandra vulnerabilityPrivilege Defined With Unsafe Actions vulnerability in Apache Cassandra. An user with MODIFY permission ON ALL KEYSPACES can escalate privileges to s…EPSS 1.0%7.8CVE-2023-30601Apache cassandra improper privilege management vulnerabilityPrivilege escalation when enabling FQL/Audit logs allows user with JMX access to run arbitrary commands as the user running Apache Cassandra This iss…EPSS 0.34%7.5CVE-2020-17516Apache cassandra authentication bypass by spoofing vulnerabilityApache Cassandra versions 2.1.0 to 2.1.22, 2.2.0 to 2.2.19, 3.0.0 to 3.0.23, and 3.11.0 to 3.11.9, when using 'dc' or 'rack' internode_encryption set…EPSS 1.9%7.5CVE-2016-4970Netty vulnerabilityhandler/ssl/OpenSslEngine.java in Netty 4.0.x before 4.0.37.Final and 4.1.x before 4.1.1.Final allows remote attackers to cause a denial of service (…EPSS 11%

Source: NIST National Vulnerability Database (record CVE-2025-26467), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.