CVE-2025-49146 – PostgreSQL JDBC channel binding requirement bypass

Abstract

pgjdbc is an open source postgresql JDBC Driver. From 42.7.4 and until 42.7.7, when the PostgreSQL JDBC driver is configured with channel binding set to required (default value is prefer), the driver would incorrectly allow connections to proceed with authentication methods that do not support channel binding (such as password, MD5, GSS, or SSPI authentication). This could allow a man-in-the-middle attacker to intercept connections that users believed were protected by channel binding requirements. This vulnerability is fixed in 42.7.7.

The Oxygen products incorporate the PostgreSQL JDBC Driver (pgjdbc) as a third-party library. This advisory was opened to address the potential impact of this third-party library vulnerability.

Affected Products/Versions

Mitigation

None

Detail

CVE-2025-49146

Severity: High

CVSS Score: 8.2

Component: PostgreSQL JDBC Driver (org.postgresql:postgresql). In pgjdbc versions 42.7.4 through 42.7.6, if the driver is configured with channel binding set to required (default is prefer), it may incorrectly allow connections to proceed using authentication methods that do not support channel binding (for example, password, MD5, GSS, or SSPI). This can undermine the intended protection of channel binding and enable man-in-the-middle interception of connections that were expected to be bound. The issue is remediated in pgjdbc 42.7.7.

Based on our review, Oxygen Content Fusion is not affected because channel binding is not used in its database connections. Oxygen Feedback included the vulnerable driver in certain builds; practical risk is low unless channelBinding=require is explicitly configured by an administrator.

Starting with Oxygen Feedback version 5.2 build 2025071110 the affected dependency was updated to a non-vulnerable version.