IBM warns of critical API Connect bug enabling remote access

IBM warns of critical API Connect bug enabling remote access

Pierluigi Paganini
January 02, 2026

IBM disclosed a critical API Connect flaw (CVE-2025-13915, CVSS 9.8) that allows remote access via an authentication bypass.

IBM addressed a critical API Connect vulnerability, tracked as CVE-2025-13915 (CVSS score of 9.8) that allows remote access via an authentication bypass.

API Connect is IBM’s API management platform. It’s used by organizations to create, secure, manage, publish, and monitor APIs across their environments.

The vulnerability is a potential authentication bypass in IBM API Connect that was discovered during internal testing.

“IBM API Connect could allow a remote attacker to bypass authentication mechanisms and gain unauthorized access to the application.” reads the advisory.

The flaw impacts the following products and versions:

As a workaround, customers who cannot apply the interim fix should disable self-service sign-up on the Developer Portal to reduce exposure to the vulnerability.

At this time, there is no evidence of active exploitation. Users are strongly advised to apply the fixes promptly to ensure protection.

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Pierluigi Paganini

(SecurityAffairs – hacking, IBM)

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AndyC

Andy Curtis is an award-winning security consultant, researcher and public speaker. He has been working in the computer security industry since the early 1990s, having been employed by state and federal government, leading healthcare and banking providers across three continents. He has given talks about computer security for some of the world’s largest companies, worked with law enforcement agencies on investigations into hacking groups, and is a regular voice on TV and radio explaining IT security threats.

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