Apache Cassandra 4.0
Apache Cassandra 4.0
Third-party support for the Apache Cassandra 4.0: 24/7 engineers manage issues, remediate vulnerabilities, and help you maintain compliance — independent of the vendor contract.
24/7 engineers own your Apache Cassandra 4.0 incidents end to end.
Mitigation and patch-around guidance when the vendor no longer ships fixes.
Controls evidence and documentation that keep auditors satisfied.
Specifications
- product
- apache-cassandra
- release
- 4.0
- product Label
- Apache Cassandra
- release Label
- 4.0
- codename
- lts
- latest Version
- 4.0.21
- release Date
- 2021-07-26
- maintained
- true
- source Url
- https://endoflife.date/apache-cassandra
OEM vs. 3rd Party Support
See how third-party support compares to the vendor contract for Apache Cassandra 4.0 — monitoring, break/fix, vulnerability work, operations and compliance, before and after EOSL.
| Feature | OEM Support | 3rd Party Support |
|---|---|---|
| Post-EOSL Support | ||
| Break/Fix Support | Until EOSL | |
| 24/7 Monitoring | ||
| Vulnerability Scanning & Remediation | ||
| Managed Operations | ||
| Procedure & Configuration Review | ||
| Compliance & Audit Documentation | Limited | |
| Discounted Migration to Other Platforms |
Why Choose 3rd Party Support for Apache Cassandra 4.0?
Vulnerability Remediation
Scanning, mitigation and patch-around guidance for Apache Cassandra 4.0 when the vendor no longer ships fixes.
Compliance Maintenance
Procedure review, controls evidence and the documentation auditors ask for — maintained continuously, not scrambled at audit time.
24/7 Expert Support
Engineers who know this release monitor, manage and fix issues around the clock — break/fix to managed operations.
Apache Cassandra 4.0 Support: Frequently Asked Questions
Is the Apache Cassandra 4.0 still supported?
Yes. The Apache Cassandra 4.0 is currently supported by Apache Cassandra, and third-party support is available as an alternative — issue management, vulnerability remediation, and compliance help independent of the vendor contract.
How much does third-party support for the Apache Cassandra 4.0 cost?
Typically 40-70% below the OEM maintenance renewal price. Exact pricing depends on quantity, service level and location — request a quote and we respond within 24 hours.
Known Vulnerabilities Affecting Apache Cassandra 4.0
10 published CVEs affect the Apache Cassandra 4.0, including 5 rated critical or high severity. Our 24/7 engineers help you assess exposure, prioritize fixes and apply available patches.
| CVE | Severity | CVSS | Published | Summary |
|---|---|---|---|---|
| CVE-2016-3427 | CRITICAL | 9.8 | Apr 21, 2016 | Unspecified vulnerability in Oracle Java SE 6u113, 7u99, and 8u77; Java SE Embedded 8u77; and JRockit R28.3.9 allows remote attackers to affect confidentiality, integrity, and availability via vectors related to JMX. |
| CVE-2021-44521 | CRITICAL | 9.1 | Feb 11, 2022 | When running Apache Cassandra with the following configuration: enable_user_defined_functions: true enable_scripted_user_defined_functions: true enable_user_defined_functions_threads: false it is possible for an attacker to execute arbitrary code on the host. The attacker would need to have enough permissions to create user defined functions in the cluster to be able to exploit this. Note that this configuration is documented as unsafe, and will continue to be considered unsafe after this CVE. |
| CVE-2025-26467 | HIGH | 8.8 | Aug 25, 2025 | 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 fi |
| CVE-2025-23015 | HIGH | 8.8 | Feb 4, 2025 | 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 through 3.0.30, 3.11.17, 4.0.15, 4.1.7, 5.0.2. Users are recommended to upgrade to versions |
| CVE-2023-30601 | HIGH | 7.8 | May 30, 2023 | Privilege escalation when enabling FQL/Audit logs allows user with JMX access to run arbitrary commands as the user running Apache Cassandra This issue affects Apache Cassandra: from 4.0.0 through 4.0.9, from 4.1.0 through 4.1.1. WORKAROUND The vulnerability requires nodetool/JMX access to be exploitable, disable access for any non-trusted users. MITIGATION Upgrade to 4.0.10 or 4.1.2 and leave the new FQL/Auditlog configuration property allow_nodetool_archive_command as false. |
| CVE-2026-32588 | MEDIUM | 6.5 | Apr 7, 2026 | 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. |
| CVE-2020-13946 | MEDIUM | 5.9 | Sep 1, 2020 | In Apache Cassandra, all versions prior to 2.1.22, 2.2.18, 3.0.22, 3.11.8 and 4.0-beta2, it is possible for a local attacker without access to the Apache Cassandra process or configuration files to manipulate the RMI registry to perform a man-in-the-middle attack and capture user names and passwords used to access the JMX interface. The attacker can then use these credentials to access the JMX interface and perform unauthorised operations. Users should also be aware of CVE-2019-2684, a JRE vulne |
| CVE-2019-2684 | MEDIUM | 5.9 | Apr 23, 2019 | Vulnerability in the Java SE, Java SE Embedded component of Oracle Java SE (subcomponent: RMI). Supported versions that are affected are Java SE: 7u211, 8u202, 11.0.2 and 12; Java SE Embedded: 8u201. Difficult to exploit vulnerability allows unauthenticated attacker with network access via multiple protocols to compromise Java SE, Java SE Embedded. Successful attacks of this vulnerability can result in unauthorized creation, deletion or modification access to critical data or all Java SE, Java S |
| CVE-2026-27315 | MEDIUM | 5.5 | Apr 7, 2026 | Sensitive Information Leak in cqlsh in Apache Cassandra 4.0 allows access to sensitive information, like passwords, from previously executed cqlsh command via ~/.cassandra/cqlsh_history local file access. Users are recommended to upgrade to version 4.0.20, which fixes this issue. -- Description: Cassandra's command-line tool, cqlsh, provides a command history feature that allows users to recall previously executed commands using the up/down arrow keys. These history records are saved in the ~ |
| CVE-2025-24860 | MEDIUM | 5.4 | Feb 4, 2025 | Incorrect Authorization vulnerability in Apache Cassandra allowing users to access a datacenter or IP/CIDR groups they should not be able to when using CassandraNetworkAuthorizer or CassandraCIDRAuthorizer. Users with restricted data center access can update their own permissions via data control language (DCL) statements on affected versions. This issue affects Apache Cassandra: from 4.0.0 through 4.0.15 and from 4.1.0 through 4.1.7 for CassandraNetworkAuthorizer, and from 5.0.0 through 5. |