CVE-2025-2506 – EDB pglogical Replication Connection Verification Bypass

The following table lists the changes that have been made to the
CVE-2025-2506 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution
of a vulnerability, and for identifying the most recent changes that may
impact the vulnerability’s severity, exploitability, or other characteristics.

  • New CVE Received
    by 20be33e2-bf35-4d13-8fad-18bd2f3e3659

    May. 22, 2025

    Action Type Old Value New Value
    Added Description 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.
    Added CVSS V3.1 AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
    Added CWE CWE-862
    Added Reference https://www.enterprisedb.com/docs/security/advisories/cve20252506/
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