Critical IBM API Connect Vulnerability Allows Attackers to Bypass Authentication

IBM has issued an urgent security warning regarding a critical vulnerability affecting its API Connect platform.

The flaw, identified during internal testing, allows attackers to bypass authentication procedures and gain unauthorized access to sensitive systems.

Given the severity of the issue, IBM is urging administrators to apply the available updates immediately to protect their environments.

The Vulnerability Explained

The vulnerability is tracked as CVE-2025-13915 and carries a critical severity rating. It stems from an authentication bypass weakness (CWE-305) in the API Connect software.

In simple terms, this flaw means the security “lock” on the application’s front door is broken. A remote attacker, someone not connected to the internal network, could exploit this to log in without valid credentials.

Once inside, they could potentially access data, change settings, or disrupt services depending on the level of access they gain.

Because this…