CVE-2026-47846
Default superuser cassandra:cassandra left active when CASSANDRA_USER is customized
Description
Bitnami Cassandra container images are affected by a retained default superuser vulnerability. When a custom administrator account is configured via the CASSANDRA_USER environment variable, the container initialization script creates the new superuser account but fails to drop the built-in cassandra account in certain scenarios. This leaves the default cassandra:cassandra superuser active as an unintended access path. Any remote attacker who knows the default Cassandra credentials, can authenticate to the cluster as a full superuser regardless of the operator's configuration, bypassing the intent to replace the built-in account.
How to fix CVE-2026-47846
To remediate CVE-2026-47846, upgrade the affected package to a fixed version below.
- —upgrade to 4.0.20-0 or later
Is CVE-2026-47846 being exploited?
Low — EPSS is 0.3%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- >= 4.0.0, < 4.0.20-0, >= 4.1.0, < 4.1.11-0, >= 5.0.0, < 5.0.8-0
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | CRITICAL9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |