Description
Privilege escalation in Apache Cassandra 5.0 on an mTLS environment using MutualTlsAuthenticator allows a user with only CREATE permission to associate their own certificate identity with an arbitrary role,
including a superuser role, and authenticate as that role via ADD IDENTITY.
Users are recommended to upgrade to version 5.0.7+, which fixes this issue.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Apache Software Foundation | Apache Cassandra | 5.0 – ≤ 5.0.6 | — |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Azure Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Azure Linux 3 | cassandra | No fix yet | — |
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| Maven | org.apache.cassandra:cassandra-all | >= 5.0-alpha1, < 5.0.7 | 5.0.7 | GHSA-qxpc-96fq-wwmg |
Advisories 1
- WID-SEC-2026-1009 Apache Cassandra: Mehrere Schwachstellen BSI CERT-Bund (WID) · Apr 7, 2026
References
- https://lists.apache.org/thread/zrng82ddy4rpsmfyk582v6hqxcqrbz7f vendor-advisory