EDB Hybrid Manager contains a flaw that allows an unauthenticated attacker to directly access certain gRPC endpoints. This could allow an attacker to read potentially sensitive data or possibly cause a denial-of-service by writing malformed data to certain gRPC endpoints. This flaw has been remediated in EDB Hybrid Manager 1.3.3, and customers should consider upgrading to 1.3.3 as soon as possible. The flaw is due to a misconfiguration in the Istio Gateway, which manages authentication and authorization for the affected endpoints. The security policy relies on an explicit definition of required permissions in the Istio Gateway configuration, and the affected endpoints were not defined in the configuration. This allowed requests to bypass both authentication and authorization within a Hybrid Manager service. All versions of Hybrid Manager - LTS should be upgraded to 1.3.3, and all versions of Hybrid Manager - Innovation should be upgraded to 2025.12.

When pglogical attempts to replicate data, it does not verify it is using a replication connection, which means a user with CONNECT access to a database configured for replication can execute the pglogical command to obtain read access to replicated tables. When pglogical runs it should verify it is running on a replication connection but does not perform this check. This vulnerability was introduced in the pglogical 3.x codebase, which is proprietary to EDB. The same code base has been integrated into BDR/PGD 4 and 5. To exploit the vulnerability the attacker needs at least CONNECT permissions to a database configured for replication and must understand a number of pglogical3/BDR specific commands and be able to decode the binary protocol.