一次情報: https://nvd.nist.gov/vuln/detail/CVE-2026-50736 概要: The pglogical queue mechanism, used to convey out-of-band commands such as replicated DDL from a publisher to a subscriber, executes message payloads on the subscriber at the privilege level of the apply worker, which is equivalent to a PostgreSQL superuser in default installations. A party acting as the publisher can send crafted queue messages that cause arbitrary SQL to be executed on the subscriber as superuser, escalating from a role permitted to use pglogical to full superuser and breaking the isolation between tenants in shared deployments. To exploit the issue an attacker must be able
Post summary
The CVE exposes a privilege escalation flaw in PostgreSQL’s pglogical extension, enabling a publisher to craft messages that run arbitrary SQL as a superuser on the subscriber.
