CyberRota Analysis
AI-GeneratedThe pglogical queue mechanism is vulnerable as it allows crafted messages from a publisher to execute arbitrary SQL on the subscriber with superuser privileges. This can lead to privilege escalation, compromising tenant isolation in shared environments. Organizations using managed PostgreSQL deployments, particularly those allowing non-superuser roles to create subscriptions, should prioritize addressing this vulnerability.
Public Exploit Signal
A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.
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Original NVD Description
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 to direct a subscription at an endpoint they control. In default installations this requires privileges normally reserved for a superuser, so the issue is most relevant to managed deployments where the ability to create subscriptions has been delegated to non-superuser roles.
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