Centreon 25.10.13 - Broker fails after configuration export with "No usable encrypted password: bad decrypt"

Hello,

I am experiencing an issue after upgrading my Centreon server to 25.10.13.

Environment

• Centreon Central: 25.10.13
• Centreon Web: 25.10.13
• Centreon Broker: 25.10.7
• Centreon Engine: 25.10.7
• MariaDB: 10.11.18
• AlmaLinux 9

Problem

After exporting the configuration from the Centreon Web interface, the broker configuration file is regenerated and the database password is written as an encrypted value:

"db_password": "encrypt::..."

When cbd starts, it immediately fails with:

No usable encrypted password: Decryption finalization failed: error:1C800064:Provider routines::bad decrypt

The broker continuously crashes and is restarted by the watchdog.

Investigation performed

• MariaDB is running correctly.
• The centreon database account works correctly.
• Manual connection to centreon_storage succeeds:

mysql -u centreon -p centreon_storage

• /etc/centreon-engine/engine-context.json exists.
• Gorgone, Engine and MariaDB are running correctly.
• Symfony secrets seem healthy:

php /usr/share/centreon/bin/console secrets:list

returns no errors.

Workaround

If I manually edit:

/etc/centreon-broker/central-broker.json

and replace:

"db_password": "encrypt::..."

with the database password in clear text:

"db_password": "********"

then:

systemctl restart cbd

starts successfully and the whole monitoring platform immediately comes back online.

Reproduction

1. Export configuration from Centreon UI.
2. central-broker.json is regenerated.
3. db_password becomes encrypt::...
4. cbd fails with bad decrypt.
5. Replace the encrypted value with the clear text password.
6. cbd starts successfully.

Additional information

Installed packages:

centreon-web-25.10.13
centreon-central-25.10.13
centreon-broker-25.10.7
centreon-engine-25.10.7

No newer Centreon Broker package is available through the repositories.

Has anyone experienced this issue after upgrading to 25.10.x?

Is there a known procedure to regenerate or repair the encryption keys used by Centreon Broker?

Thanks in advance for your help.