SB2025082056 - Bitbucket Data Center and Server update for PostgreSQL JDBC driver misconfiguration
Published: August 20, 2025
Security Bulletin ID
SB2025082056
Severity
High
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Data manipulation
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Improper Authentication (CVE-ID: CVE-2025-49146)
The vulnerability allows a remote attacker to bypass authentication process.
The vulnerability exists due to 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). A remote attacker can intercept connections that users believed were protected by channel binding requirements.
Remediation
Install update from vendor's website.