RCE in Apache Cassandra
CVE-2021-44521
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 arbitra…
Vulnerability class: RCE (Remote Code Execution)
EPSS: 0.547 (98.9th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 9.1 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H.
Affected products
- Apache Cassandra
- Apache Software Foundation Cassandra — versions 3.0.0, unspecified, 3.1
Weakness classification (CWE)
Public proof-of-concept exploits
References
- security@apache.org (Mailing List, x_refsource_MISC, Issue Tracking, Vendor Advisory)
- security@apache.org (mailing-list, x_refsource_MLIST, Mailing List, Third Party Advisory)
- security@apache.org (Exploit, Third Party Advisory, x_refsource_MISC, Mitigation)
- security@apache.org (x_refsource_CONFIRM, Third Party Advisory)
Frequently asked questions
- What is CVE-2021-44521?
- CVE-2021-44521 is a critical-severity vulnerability in Apache Cassandra, classified under Code Injection. CVSS score: 9.1/10. Published 2022-02-11.
- How severe is CVE-2021-44521?
- Critical severity. CVSS v3 base score is 9.1 out of 10.
- Is CVE-2021-44521 known to be exploited?
- 24 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.