cve 2025 12819

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CVE-2025-12819 is a critical authentication-path vulnerability in PgBouncer, the lightweight connection pooler for PostgreSQL. The flaw allows an unauthenticated client to execute arbitrary SQL during the authentication process by supplying a crafted search_path parameter in the StartupMessage. This affects PgBouncer releases prior to version 1.25.1. The fix was released in PgBouncer 1.25.1 on December 3, 2025. Administrators running PgBouncer as a proxy between clients and PostgreSQL databases should upgrade immediately to prevent potential exploitation. The vulnerability underscores the importance of keeping connection poolers updated to maintain database security.

  1. PgBouncer CVE-2025-12819: Upgrade to 1.25.1 to Stop Auth Time SQL Execution

    PgBouncer has a serious authentication-path vulnerability—CVE-2025-12819—that can let an unauthenticated client execute arbitrary SQL during the authentication process by supplying a crafted search_path parameter in the StartupMessage; the bug affects PgBouncer releases prior to 1.25.1 and was...
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