EnterpriseDB pglogical up to 2.4.7 Apply Worker privileges management

Summaryinfo

A vulnerability described as critical has been identified in EnterpriseDB pglogical up to 2.4.7. The impacted element is an unknown function of the component Apply Worker. Executing a manipulation can lead to privileges management. This vulnerability is tracked as CVE-2026-50737. The attack can be launched remotely. No exploit exists.

Detailsinfo

A vulnerability has been found in EnterpriseDB pglogical up to 2.4.7 and classified as critical. This vulnerability affects an unknown code block of the component Apply Worker. The manipulation with an unknown input leads to a privileges management vulnerability. The CWE definition for the vulnerability is CWE-269. The product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

When applying replicated changes for a row that is missing one or more columns, pglogical evaluates the affected table's default expressions on the subscriber. Because the apply worker runs at a privilege level equivalent to a PostgreSQL superuser in default installations, any function invoked by such a default expression also runs at that privilege. A party acting as the publisher can use this path to cause functions to be executed on the subscriber as superuser, escalating from a role permitted to use pglogical to full superuser. This is a second, independent path to the same superuser escalation tracked under CVE-2026-50736 (the pglogical queue issue). 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.

The advisory is available at enterprisedb.com. This vulnerability was named CVE-2026-50737 since 06/05/2026. The exploitation appears to be easy. The attack can be initiated remotely. The technical details are unknown and an exploit is not available. This vulnerability is assigned to T1068 by the MITRE ATT&CK project.

Upgrading to version 2.4.8 eliminates this vulnerability.

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Productinfo

Vendor

• EnterpriseDB

Name

• pglogical

Version

• 2.4.0
• 2.4.1
• 2.4.2
• 2.4.3
• 2.4.4
• 2.4.5
• 2.4.6
• 2.4.7

CPE 2.3info

• 🔒
• 🔒
• 🔒

CPE 2.2info

• 🔒
• 🔒
• 🔒

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