CVE-2026-17337 PUBLISHED

Multiple Vulnerabilities in IBM API Connect

Assigner: ibm
Reserved: 25.07.2026 Published: 07.11.2026 Updated: 07.11.2026

IBM API Connect 12.1.0.0 through 12.1.1.2 could allow a remote authenticated attacker to bypass authentication due to improper certificate validation. A certificate check is not performed reliably in all cases, which could allow a connection to be accepted without proper authentication.

Metrics

CVSS 3.1

CVSS Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
CVSS Score: 7.4

Attack Vector	Network	Scope	Unchanged
Attack Complexity	High	Confidentiality Impact	High
Privileges Required	None	Integrity Impact	High
User Interaction	None	Availability Impact	None

CVSS 3.1

Product Status

Vendor	IBM
Product	API Connect
Versions	affected from 12.1.0.0 to 12.1.1.2 (incl.)

Solutions

IBM strongly recommends addressing the vulnerability now by upgrading to v12.1.1.3 Fix Central Link: https://www.ibm.com/support/pages/node/7290205

References

https://www.ibm.com/support/pages/node/7295635

Problem Types

CWE-362 Concurrent Execution using Shared Resource with Improper Synchronization CWE