PatchSiren cyber security CVE debrief

CVE-2026-47846 Bitnami CVE debrief

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.

Vendor: Bitnami
Product: bitnami/cassandra
CVSS: CRITICAL 9.8
CISA KEV: Not listed in stored evidence
Original CVE published: 2026-06-18
Original CVE updated: 2026-06-22
Advisory published: 2026-06-18
Advisory updated: 2026-06-22

Who should care

Users of Bitnami Cassandra container images, particularly those using versions 4.0.x prior to 4.0.20-photon-5-r7, 4.1.x prior to 4.1.11-photon-5-r7, and 5.0.x prior to 5.0.8-photon-5-r4 or 5.0.8-debian-12-r3, should assess their exposure and apply necessary patches.

Technical summary

The vulnerability exists in Bitnami Cassandra container images. A custom administrator account configured via the CASSANDRA_USER environment variable leads to the creation of a new superuser account. However, the built-in cassandra account is not dropped in certain scenarios, leaving the default cassandra:cassandra superuser active. Affected versions include container images 4.0.x prior to 4.0.20-photon-5-r7, 4.1.x prior to 4.1.11-photon-5-r7, and 5.0.x prior to 5.0.8-photon-5-r4 or 5.0.8-debian-12-r3.

Defensive priority

High

Recommended defensive actions

Inventory and assess Bitnami Cassandra container image usage, particularly versions 4.0.x, 4.1.x, and 5.0.x.
Apply patches to update container images to versions 4.0.20-photon-5-r7, 4.1.11-photon-5-r7, or 5.0.8-photon-5-r4 / 5.0.8-debian-12-r3.
Implement compensating controls, such as restricting access to Cassandra instances.
Monitor for suspicious activity related to Cassandra instances.
Verify custom administrator account configurations to ensure proper setup.

Evidence notes

The CVE record was published on 2026-06-18T20:16:13.630Z and was last modified on 2026-06-22T20:23:26.770Z. The NVD entry is currently Awaiting Analysis. The vulnerability has a CVSS score of 9.8 and is classified as CRITICAL.

Official resources

AI-assisted PatchSiren debrief based on the supplied source corpus. The CVE record was published on 2026-06-18T20:16:13.630Z and has not been modified since then. The NVD entry is currently Awaiting Analysis.