CVE-2026-16920 PUBLISHED

Multiple Vulnerabilities in IBM API Connect

Assigner: ibm
Reserved: 24.07.2026 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 security restrictions due to a confused deputy vulnerability.

Metrics

CVSS 3.1

CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
CVSS Score: 9.9

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

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-441 Unintended Proxy or Intermediary CWE