PgBouncer 1.25.1 released - Fixing a bunch of bugs before Christmas (including CVE-2025-12819)

From: PgBouncer via PostgreSQL Announce <announce-noreply(at)postgresql(dot)org>
To: PostgreSQL Announce <pgsql-announce(at)lists(dot)postgresql(dot)org>
Subject: PgBouncer 1.25.1 released - Fixing a bunch of bugs before Christmas (including CVE-2025-12819)
Date: 2025-12-03 22:17:29
Message-ID: 176480024948.2921403.17247771773846586825@wrigleys.postgresql.org
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PgBouncer 1.25.1 has been released. This release fixes CVE-2025-12819:
Before this release it was possible for an unauthenticated attacker to execute arbitrary SQL during authentication by providing a malicious search_path parameter in the StartupMessage. Systems that have ALL the following configurations are vulnerable:

1. `track_extra_parameters` includes search_path (non-default configuration, probably only configured in setups involving Citus or PostgreSQL 18)
2. `auth_user` is set to a non-empty string (non-default configuration)
3. `auth_query` is configured without fully-qualified object names (default configuration, the < operator is not schema q

This release also fixes a bunch of bugs/issues introduced in the recent 1.25.0 release.

See the full details in the [changelog](https://pgbouncer.org/changelog.html#pgbouncer-125x).

Download here:
[pgbouncer-1.25.1.tar.gz](https://pgbouncer.org/downloads/files/1.25.1/pgbouncer-1.25.1.tar.gz)
([sha256](https://pgbouncer.org/downloads/files/1.25.1/pgbouncer-1.25.1.tar.gz.sha256))

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