4 matches found
CVE-2026-50736
The CVE concerns the pglogical queue mechanism in PostgreSQL, where the apply worker runs payloads at superuser privilege. A publisher can craft queue messages to execute arbitrary SQL on a subscriber as superuser, breaking tenant isolation in shared deployments. Exploitation requires directing a...
CVE-2026-50737
The CVE-2026-50737 entry describes a vulnerability in pglogical where, during replication of changes for a row missing some columns, the subscriber evaluates the table’s default expressions. The apply worker operates with superuser-equivalent privileges by default, so any function invoked by such...
CVE-2026-50738
A use-after-free exists in pglogical's worker signaling code. A worker structure can be dereferenced after its underlying slot has been freed or recycled during normal worker lifecycle events, making the condition reachable during replication operations. A low-privileged user can influence worker...