The PostgreSQL JDBC team has issued a crucial security update with the release of version 42.7.7, specifically targeting the vulnerability identified as CVE-2025-49146. This update addresses a significant flaw in the JDBC driver that could permit a man-in-the-middle (MITM) attacker to compromise connection security when non-channel binding authentication methods are used.
In detail, when the PostgreSQL JDBC driver is set to require channel binding (the default configuration is to prefer it), the previous version would incorrectly allow the authentication process to continue with methods that do not support channel binding, such as password, MD5, GSS, or SSPI authentication. This flaw could mislead users into believing their connections were secure when, in reality, they were vulnerable to interception and exploitation.
The PostgreSQL JDBC team has expressed gratitude to George MacKerron for discovering and reporting this critical issue. Users are encouraged to review the security advisory for further details and to update their JDBC driver to version 42.7.7 to ensure their connections are secure and protected against potential MITM attacks.
In addition to this security update, it may be beneficial for users to stay informed about future releases and vulnerabilities. Regular updates and monitoring of security advisories can help maintain the integrity and security of database connections. Furthermore, organizations should consider implementing best practices for authentication and connection management to mitigate risks associated with potential vulnerabilities
In detail, when the PostgreSQL JDBC driver is set to require channel binding (the default configuration is to prefer it), the previous version would incorrectly allow the authentication process to continue with methods that do not support channel binding, such as password, MD5, GSS, or SSPI authentication. This flaw could mislead users into believing their connections were secure when, in reality, they were vulnerable to interception and exploitation.
The PostgreSQL JDBC team has expressed gratitude to George MacKerron for discovering and reporting this critical issue. Users are encouraged to review the security advisory for further details and to update their JDBC driver to version 42.7.7 to ensure their connections are secure and protected against potential MITM attacks.
In addition to this security update, it may be beneficial for users to stay informed about future releases and vulnerabilities. Regular updates and monitoring of security advisories can help maintain the integrity and security of database connections. Furthermore, organizations should consider implementing best practices for authentication and connection management to mitigate risks associated with potential vulnerabilities
PostgreSQL JDBC 42.7.7 Security update for CVE-2025-49146
The PostgreSQL JDBC team has released version 42.7.7 to address CVE-2025-49146. This update prevents incorrect connection progress when using non-channel binding authentication methods, which could potentially allow a man-in-the-middle attacker to intercept connections.
PostgreSQL JDBC 42.7.7 Security update for CVE-2025-49146 @ Linux Compatible
