Authentication Bypass in Apache Cassandra
Apache 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 setting, allows both encrypted and unencrypted internode connections. A misconfigured node or a malicious user can use the unencrypted connection despite not being in the same rack or dc, and bypass mutual TLS requirement.
Affected software
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| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| Java / Kotlin (Maven) | org.apache.cassandra:cassandra-all | >= 2.1.0, < 3.0.24, >= 3.11.0, < 3.11.10 | 3.0.24, 3.11.10 |
References
- https://nvd.nist.gov/vuln/detail/CVE-2020-17516
- https://lists.apache.org/thread.html/r81243a412a37a22211754936a13856af07cc68a93d728c52807486e9@%3Ccommits.cassandra.apache.org%3E
- https://lists.apache.org/thread.html/rcb16f36cafa184dd159e94033f87d0fc274c4752d467f3a09f2ceae4@%3Ccommits.cassandra.apache.org%3E
- https://lists.apache.org/thread.html/rd84bec24907617bdb72f7ec907cd7437a0fd5a8886eb55aa84dd1eb8@%3Ccommits.cassandra.apache.org%3E
- https://security.netapp.com/advisory/ntap-20210521-0002
- http://mail-archives.apache.org/mod_mbox/cassandra-user/202102.mbox/%3c6E4340A5-D7BE-4D33-9EC5-3B505A626D8D@apache.org%3e
- CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N- Weakness (CWE)
CWE-290- Platform
- Java / Kotlin (Maven)
- Package
org.apache.cassandra:cassandra-all- Disclosed
- 09.02.2022
- Updated
- 11.10.2026 11:22
Sources and licenses
OSV / GitHub Advisory Database - GHSA-2vxm-vp4c-fjfw - CC BY 4.0
Vulnerability history: org.apache.cassandra:cassandra-all
All published vulnerabilities of this package (Java / Kotlin (Maven)), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 12
- First → latest
- 05.2021 04.2026
- Without a fix
- 0
- Exploited in attacks
- 0
Severity breakdown
- Critical 2
- High 5
- Medium 4
- Low 1
Disclosures per year
- 2021: 1
- 2022: 3
- 2023: 1
- 2024: 0
- 2025: 4
- 2026: 3
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Authentication Bypass in Apache Cassandra this entry
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