GHSA-hq9p-pm7w-8p54HighCVSS 8.2
pgjdbc Client Allows Fallback to Insecure Authentication Despite channelBinding=require Configuration
🔗 CVE IDs covered (1)
📋 Description
Impact
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.
Patches
TBD
Workarounds
Configure sslMode=verify-full to prevent MITM attacks.
References
- https://www.postgresql.org/docs/current/sasl-authentication.html#SASL-SCRAM-SHA-256
- https://datatracker.ietf.org/doc/html/rfc7677
- https://datatracker.ietf.org/doc/html/rfc5802
🎯 Affected products1
- maven/org.postgresql:postgresql:>= 42.7.4, < 42.7.7
🔗 References (7)
- https://github.com/pgjdbc/pgjdbc/security/advisories/GHSA-hq9p-pm7w-8p54
- https://github.com/pgjdbc/pgjdbc/commit/9217ed16cb2918ab1b6b9258ae97e6ede244d8a0
- https://datatracker.ietf.org/doc/html/rfc5802
- https://datatracker.ietf.org/doc/html/rfc7677
- https://www.postgresql.org/docs/current/sasl-authentication.html#SASL-SCRAM-SHA-256
- https://nvd.nist.gov/vuln/detail/CVE-2025-49146
- https://github.com/advisories/GHSA-hq9p-pm7w-8p54