CVSS 3.1
9.1 criticalCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:HCVE-2021-44521
Critical (9.1) in apache cassandra. EPSS 59% chance of exploitation in the next 30 days. Fixed in org.apache.cassandra:cassandra-all 3.0.26, 3.11.12, 4.0.2.
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.
Severity
- EPSS
- 59% chance of exploitation in the next 30 days; higher than 99% of CVEs (scores of 2026-10-31)
- CWEs
- CWE-732, CWE-94
- Published
- Modified
- Record from
- the NVD, synced
Affected
- apache:cassandra
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-8ffc-79xg-29w8 | Maven | org.apache.cassandra:cassandra-all | <3.0.26 | 3.0.26 |
| GHSA-8ffc-79xg-29w8 | Maven | org.apache.cassandra:cassandra-all | >=3.11.0 <3.11.12 | 3.11.12 |
| GHSA-8ffc-79xg-29w8 | Maven | org.apache.cassandra:cassandra-all | >=4.0.0 <4.0.2 | 4.0.2 |
References
- http://www.openwall.com/lists/oss-security/2022/02/11/4
- https://jfrog.com/blog/cve-2021-44521-exploiting-apache-cassandra-user-defined-functions-for-remote-code-execution/
- https://lists.apache.org/thread/y4nb9s4co34j8hdfmrshyl09lokm7356
- https://security.netapp.com/advisory/ntap-20220225-0001/
- http://www.openwall.com/lists/oss-security/2022/02/11/4